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Broadband
Operators |
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| Future 4G broadband wireless networks, e.g.,
WiMAX, LTE, will offer high speed mobile networking
supporting multimedia services, e.g., video and
music streaming, online interactive gaming, photo
uploads, etc. While a 4G base-station will have a
capacity of 10's of Mbps its coverage or range will
be limited to few kilometers depending on system
parameters like frequency band, channel bandwidth,
terrain, morphology, link budget, mobility, etc.
Because of the base-station limited range denser deployment will be required resulting in
increased capital investment (CAPEX). In addition
recurring expenses (OPEX) will increase
significantly due to backhaul links. Backhaul is one
of the largest operational expenses a carrier faces,
comprising up to 40 percent of recurring network
expenses. Overcoming the backhaul bottleneck is a key challenge in successfully deploying WiMAX, LTE,
and other next-generation communication systems.
Backhaul is a critical element of 4G business
models, affecting capital investment, operational
expense, time to market, and the customer
experience. 4G systems, which demand substantially
greater backhaul capacity, have the potential to
significantly magnify these cost challenges.
Therefore, good network architecture design
including backhaul strategy (e.g., in-band wireless
mesh, 802.16j relays, pt-to-multi-pt links) is of
paramount importance. Our wireless knowledge and
innovative network design approach will ensure
successful deployment and good user experience. |
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