Hvad er WiMAX?
WiMAX står for Worldwide Interoperability for Microwave Access.
Det er den trådløse digitale kommunikationsmetode som også kendes som IEEE 802.16. Denne protokol kræver IKKE LOS (Line Of Sight) og er beregnet for trådløse netværk og bredbånds internet fra 2 MBIT indtil 2 GBIT båndbredde med en teoretisk rækkevidde på op til 200 km for stationære stationer og 10-100 km for mobile stationer.
I sammenligning med WiFi/802.11 er rækkevidde max. 100 meter. WiMAX har derfor bedre sikkerhed, rækkevidde og båndbredde.

WiMAX benyttes mest som Internet opkobling og P2P men kan med fordel anvendes LOKALT til indendørs brug for skabelse af trådløse virksomheder m.v. eller forbindelser imellem medarbejdere og virksomhed, partnere m.v. som f.eks. medarbejderbredbånd og hjemmearbejdspladser fra Verinet.

Verinet tilbyder WiMAX OFDM™ teknologi
Verinet WiMAX med OFDM™ + MIMO og Backhaul antenneteknologi fra USA giver indtil 200 KM dokumenteret rækkevidde i fri luft fra verdens førende producenter. Disse løsninger benyttes pt. til virksomheder, kommuner, ISP, boligforeninger, P2P, P2M, P4DIX samt TeleBackup + ISP Backbone.
Med disse attraktive løsninger kan man sammenkoble alle virksomhedens PC'ere, alle kommunernes institutioner og hele arealer på størrelse med Danmark med kun 100 antenner.

99.999% oppetid og dokumenteret QoS (QUALITY OF SERVICE)
Verinet tilbyder 99.999% garanteret backbone access ved samtidig tegning af SLA aftale. Med en SLA aftale sikres endvidere QoS, således at kvaliteten på samtaler, audio og videostreaming sikres, hvilket ikke er normalt med standard Internet opkoblinger.

WiMAX Forum Member WiMAX har tilslutning fra verdens førende producenter
WiMAX Forum tilbyder en certificering af alt udstyr og IEEE 802.16 WiMAX standarden definerer de tekniske detaljer. WiMAX er i dag den mest sikre, robuste, roste og med support fra det meste af industrien. Det er derfor sikkert at investere i WiMAX udstyr. Medlemmer tæller bl.a. af Microsoft, Intel, DELL, Nortel, Cisco, Motorola, Nokia , Ericsson, Lucent , LG, Siemens, British Telecom, AT&T, Fujitsu, Sprint, Samsung, Alvarion, Alcatel m.fl.

De fleste analysefirmaer og magasiner m.v. er enige om, at WiMAX er den mest ekspanderende teknologi på markedet for Internet og Mobiltelefoner og er spået markedsandele på indtil 90%.

Sikkerhed, størst rækkevidde og mest båndbredde giver succes
WiMAX har den fordel den ikke behøver Line Of Sight og kan gå gennem bygninger, skov og andre forhindringer. WiMAX har aldrig været hacket eller lign. og er pt. den mest sikre standard. Flere banker vælger WiMAX grundet krypteringsmuligheden og det faktum at CPE radioteknologi giver markedets mest robuste og højeste sikkerhed. Verinet tilbyder VOIP og trådløse telefoner til WiMAX.

WiMAX i kameraer, ure, biler, telefoner, PDA m.v.
Teknologisk bliver WiMAX chips bygget ind i notebooks, kameraer, biltelefoner, TV, HiFi, Media Center, biler, køleskabe m.v. hvilket kan skabe grobund for services til disse brugere og af verdens første kædebrug hvor f.eks. WiMAX i biler f.eks. benyttes som et stort netværk og til leverancer af content til og fra brugere baseret på brugernes input.

Verinet og WiMAX TRIPLE PLAY
Verinet har som den første leverandør i Danmark leveret 20 MBIT opkoblinger på WiMAX via det licensfrie bånd på 3,5 og 5.8 GHZ (flere varianter er tilkommet og tilkommer senere) og oven i købet gjort WiMAX kompatibel med WiFi/WLAN 802.11x teknologier. Verinet WiMAX netværk kan benyttes til båndbredder indtil 2 GBIT og med TRIPLE PLAY som betyder at man f.eks. kan få internet, telefoni, tv, videoovervågning og positions-bestemmende ydelser i samme modtagelse.

WiMAX certificeret godkendelse af alt udstyr
Verinet leverer kun godkendt udstyr og tilbyder den bedst tilgængelige rådgivning da vi arbejder med WiMAX udstyr til dagligt og har løst mange opgaver for både det offentlige, private institutioner, boligforeninger og nogle af Danmarks største virksomheder. Verinet leverer WiMAX internet adgang i hele Danmark og kombinerer både MAN (METROPOL AREA NETWORK) med lokale netværk og Internettet. Fordi WiMAX har en enorm rækkevidde på indtil 200 KM tilbyder vi også videoovervågning og vil senere via MOBILE WIMAX udbyde services til MOBIL IP TELEFONI i de store byområder.

Se Verinet's partnerliste. Verinet er endvidere initiativtager og pt. formand for WIMAX Foreningen, en forening af danske udbydere som benytter WiMAX teknologi i sine produkter. Se WiMAX.DK

Verinet leverer færdige løsninger til f.eks.:

Tele og Internet udbydere med levering af WiMAX og OFDM™ teknologi + DIX BACKBONE
Kommuner hvor hele kommunes institutioner forbindes i et netværk med internetadgang
Boligforeninger 5i1 løsning: Internet, TV, Telefoni, Videoovervågning og Boligforeningssoftware
Virksomheder hvor virksomhedens kabler udskiftes med WiMAX og fibernetadgang eller WiMAX
Hospitaler for sikker administration og overvågning af Internet, LAN og WAN forbindelser.
Videoovervågning+Alarmsystemer med sensorer for bevægelse, åbning, fugt, temperatur, puls,
Skoler for e-learning applikationer, overvågning, streaming, RoundTable og MS Sharepoint
Metropol netværk til byområder, industrikvarterer, landsdele m.v.
Midlertidige netværk til f.eks. byggepladser, stævner, messer og udstillinger.

WiMAX til lokal netværk, MAN, Point-2-Point og Internet.
WiMAX kan med fordel benyttes til erstatning for virksomhedens cablingbaserede systemer. Fordelen ved kabelfri netværks installationer er en nemmere betjening, større frihed og udbygningsevne. Verinet tilbyder i denne forbindelse uforbindende tilbud på installation af WiMAX i virksomheder. En WiMAX installation kan f.eks. tilbyde Microsoft Sharepoint access, Hosted Exchange løsninger, Audio+Videoovervågning, samt de generelle WiMAX ydelser såsom P2P netværk hvor du forbinder dig til et hovedkontor eller en anden virksomhed, Internettet eller tilslutning til Verinet på DIX for forskellige services herunder IP telefoni, Mobil IP telefoni, SMS/FAX Gateways m.v.

Alternativer til WiMAX
WiMAX er allerede nu billigere end f.eks. SHDSL og forventes at være billigere end ADSL allerede i 2006. I sammenligning med 3G som primært kun benyttes til telefoni er udbredelsen og opbakningen til WiMAX langt større og produkterne er langt billigere og med flere tusinde WiMAX produkter i sammenligning med nogle få 3G produkter. Mobile WiMAX (802.16-2004) er den mobile standard for mobiltelefoner m.v. en standard der forventes den største udbredelse fordi den i lighed med den almindelig WiMAX standard kan kommunikerer direkte med alle netværk og på den måde give gratis telefoni. De resterende teknologier som er tilstede på markedet eller kommer er den kommende IEEE 802.11n, Bluetooth og FWA hvor sidstnævnte kræver Line of Sight. Ultra WideBand, MultiBand OFDM er en ny kortafstands 480 MB/s teknologi, som supportes af Verinet der udvikler software til UWB og denne understøttes af bl.a. Intel, HP, Microsoft, Nokia, Philips, Sony m.fl. og forventes i 2007.

Læs her mere om Intels opfattelse af de nye trådløse standarder.

Kontakt CTO Teknisk direktør Steen Clausen på telefon 70202200 lokal 280
for yderligere information, specificeret tilbud og hør mere.

Udvalgte links: (indeholder links udenfor verinet.dk)

White Papers:

Regulatory Positions and Goals of the WiMAX Forum - download
Business Case for Fixed Wireless Access in Emerging Markets - download
Deployment Considerations for Fixed Wireless Access in License Bands - download
Business Case Models for Fixed Broadband Wireless Access based on WiMAX Technology and the 802.16 Standard - download
Initial Certification Profiles and the European regulatory framework - download
WiMAX’s technology for LOS and NLOS environments 638KB - download
Telephony’s “Complete Guide to WiMAX” - download
Regulatory Position and Goals of the WiMAX Forum - download
What WiMAX Forum Certified™ products will bring to Wi-Fi™ - download
What WiMAX Forum Certified™ will bring to 802.16 - download
WiMAX and IEEE802.16a - Igniting BWA - download

Verinet samarbejdspartnere og produkter: (KLIK PÅ LOGO FOR BESØG)

Verinet forklaringer alfabetisk til standarder og forkortelser:

802.11: A type of radio technology used for wireless local area networks (WLANs), developed by a working group of the IEEE (see IEEE). Also known as Wi-Fi. 802.11 is composed of several standards operating in different radio frequencies: 802.11b operates in the 2.4-GHz frequency range with a bandwidth of up to 11 Mbps; 802.11a operates in the 5-GHz frequency range with a bandwidth of up to 54 Mbps; 802.11g also operates in the 2.4-GHz frequency range but with a bandwidth of 54 Mbps.
802.16: A family of wireless specifications developed by a working group of the IEEE (see IEEE). Covers 10-GHz to 66-GHz wireless networks. The first broadband wireless access standard to be developed and released by an accredited standards body, 802.16 features a protocol-independent core, supports high-bandwidth on-demand environments and hundreds of users per channel, and can handle either continuous or bursty traffic.
802.16d: A consolidation of the 802.16a and 802.16c standards into a single WiMAX standard. The new version also supports MIMO (see MIMO) antennas, which increases reliable range amid multipath.
802.16e: A working specification under the 802.16 wireless specification to enable connections for mobile devices. Until 802.16e, the .16 standard was for fixed connections only.
ARQ: Automatic repeat request. The standard method of checking transmitted data, used on virtually all high-speed data communications systems.
CDMA: Code-Division Multiple Access. A standard mobile wireless service providers use to allocate bandwidth for subscribers of digital wireless services, such as cellular service and messaging. CDMA distinguishes between multiple transmission-carried simultaneously on a single wireless signal. It carries the transmissions on that signal, freeing network room for the wireless carrier and providing interference-free calls for the user. Several versions of the standard are still under development. CDMA promises to open up network capacity for wireless carriers and improve the quality of wireless messages and users' access to the wireless airwaves. It's an alternative to GSM, which is popular in Europe and Asia (see GSM).
CDMA 1XEV-DO: A third-generation wireless protocol that is a stepping stone in the evolution of CDMA2000 (see CDMA2000). 1XEV "data optimized" is a data-only overlay that uses a 1.25-MHz channel to provide a peak data rate throughput of 2.4 Mbps.
CDMA2000: Code Division Multiple Access 2000. A third generation (3G) wireless system, trademarked by Qualcomm, offering 3G capabilities within a single 1.25-MHz channel, effectively doubling the voice capacity of the standard's predecessor and offering data speeds of up to 307 Kbps.
ADAPTIX OFDMA/TDD: The ADAPTIX scalable OFDMA operating system that drives the NewHorizonTM software defined radio platform. OFDMA (see OFDMA) alone does not automatically lead to higher network capacity. The ADAPTIX OFDMA/TDD architecture captures the potentials of OFDMA by marrying it with an intelligent MAC (media access control) layer. In particular, the MAC is designed to be channel- and application-aware so that individual radio resources (frequency, time, space) are utilized to their limits AT ALL TIMES. The ADATPIX OFDMA/TDD architecture is a fully pre- WiMAX and WiBro compliant engine that delivers multifold capacity gain over regular OFDMA systems.
FDD: Frequency Division Duplexing. A transmission method that separates the transmitting and receiving channels with a guard band (some amount of spectrum that acts as a buffer or insulator). Allows two-way data transmission by, in effect, opening two distinct radio links. Contrast with Time Division Duplexing (see TDD).
FFT: Fast Fourier transform. A signal processing term for a common computer implemetation of Fourier transforms. The FFT will always result in a finite series of sine and consine waves as an extremely close approximation of the possibly infinite series described by the purely mathematical application of the Fourier Transform.
GSM: A wireless communications protocol that allows large numbers of users to access one radio frequency by allocating time slots for use to multiple voice or data calls. A standard for how data is coded and transferred through the wireless spectrum. The European wireless standard also used in Asia, GSM is an alternative to CDMA. GSM digitizes and compresses data and sends it down a channel with two other streams of user data. The standard is based on Time Division Multiple Access (see TDMA).
IEEE: Institute of Electrical and Electronics Engineers. A nonprofit organization of engineers that holds conferences, publishes literature, and develops standards for electronics. Its membership spans over 150 countries.
IPv6: Internet Protocol Version 6. The "Internet Protocol" is a standard that defines how data is transmitted over the Internet. IP bundles data—including e-mail, faxes, voice calls and messages, and other types—into "packets" in order to transmit it over public and private networks. IPv6 is a replacement for IPv4 and includes support for flow ID in the packet header, which can be used to identify flows of transmission traffic.
LAN: Local area network. A data network generally confined to a building or campus environment and owned by the end user organization.
MAC: Media Access Control. The lower of the two sublayers of the data link layer defined by the IEEE. The MAC sublayer handles access to shared media, such as whether token passing or contention will be used.
MAN: Metropolitan area network. A public network that covers a metropolitan area, which may extend beyond the official city limits.
MIMO: Multiple input multiple output. An antenna technology for wireless communications in which multiple antennas are used at both the source (transmitter) and the destination (receiver). The antennas at each end of the communications circuit are combined to minimize errors and optimize data speed.
OFDM: Orthogonal Frequency Division Multiplexing. A modulation technique for wireless communications. OFDM splits a data stream into multiple RF (radio frequency) channels, each of which is sent over a subcarrier frequency. Multiple data symbols are encoded concurrently onto multiple frequencies in a parallel fashion. Other techniques are used to ensure maximum transmission performance.
OFDMA: Orthogonal Frequency Division Multiple Access. A highly flexible multiple-access scheme based on OFDM modem. OFDMA is the predominant multiple-access scheme of choice for beyond 3G (B3G) generation broadband wireless systems such as WiMAX and WiBro. The major benefits of OFDMA include simplicity, high scalability, fine granularity, and capacity-achieving performance.
QAM: Quadrature amplitude modulation. A sophisticated modulation technique, or compression technique, using variations in signal amplitude and phase, that allows multiple bits to form a single "symbol," which is then impressed on a single sine wave.
QoS: Quality of Service. The ability to define a level of performance in a data communications system. For example, ATM networks specify modes of service that ensure optimum performance for traffic such as real-time voice and video. QoS has become a major issue on the Internet as well as in enterprise networks, because voice and video are increasingly traveling over IP-based data networks that were not designed for continuous speech or video. A high QoS would ensure that the packets of data all arrive in time for undetectable reassembly.
SDR: Software defined radio. A radio in a mobile communications environment whose channel modulation waveforms are defined in software. That is, waveforms are generated as sampled digital signals, converted from digital to analog, and then upconverted to RF. The receiver, similarly, employs a wideband analog to digital converter (ADC) that captures all of the channels of the software radio node. The receiver then extracts, downconverts, and demodulates the channel waveform using software on a general purpose processor.
TDD: Time Division Duplexing. A transmission method that uses only one channel for transmitting and receiving, separating them by different time slots. No guard band is used. This increases spectral efficiency by eliminating the buffer band, but also increases flexibility in asynchronous applications. For example, if less traffic travels upstream, the time slice for that direction can be reduced and reallocated to downstream traffic.
TDMA: Time Division Multiple Access. TDMA breaks down data transmission, such as a phone conversation, into fragments and transmits each fragment in a short burst, assigning each fragment a time slot. With a cell phone, the caller would not detect this fragmentation. Whereas CDMA (which is used more frequently in the United States) breaks down calls on a signal by codes, TDMA breaks them down by time. The result in both cases: increased network capacity for the wireless carrier and a lack of interference for the caller. TDMA works with GSM and digital cellular services.
TD-SCDMA: Time division synchronous code division multiple access. A unique 3G wireless standard under development in China for use inside China. The spectral efficiency of radio systems is three to five times higher than that of GSM.
VoIP: Voice Over Internet Protocol. The technology used to transmit voice conversation over a data network using the Internet Protocol. The data network can be the public Internet, a corporate intranet, or another managed or service provider network.
WAN: Wide area network. A public voice or data network that extends beyond the metropolitan area, perhaps even internationally.
WiBro: Wireless broadband. A standard developed for the Korean market that is essentially 802.16d with limited 802.16e functionality offering support for device mobility at speeds of up to 60 km per hour. The standard is expected to support 1 to 2 Mbps throughput per subscriber, and will operate in the 2.3-GHz band.
Wi-Fi: Wireless fidelity. Another name for a wireless local area network running under the 802.11a/b/g standard in the 2.4-GHz range (see 802.11).
WiMAX: A group of broadband wireless communications standards for metropolitan area networks (MANs) developed by a working group of the IEEE (see 802.16)
WLAN: Wireless local area network (see Wi-Fi).