Proxim: Broadband Wireless Backhaul - Systems, Trends, Aplications & Solutions
Traditionally backhaul networks have been acquainted with Ethernet cables, fiber, copper wires and other means of limited and expensive cabled infrastructures. Today the increased demand for high-bandwidth, data-intensive services with guaranteed Quality of Services (QoS) and the exponential growth in consumer devices are posing a real challenge to TELCOs and Service Providers. This confined technological state and a rapidly emerging need to upgrade the existing backhaul networks at a constant rate is concerning Service Providers, as upgrading wired backhaul systems requires large recurring investments and high operational costs.
Accelerated bandwidth requirements and the huge upgrade costs for leased lines have paved the way for the emergence of wireless backhaul systems as a primary alternative for reliable backhaul. With bandwidth capabilities exceeding 1.25 Gbps, wireline-like efficiency in terms of QoS, and above all an incredibly low CAPEX and OPEX - wireless backhaul has clearly emerged as a lucrative choice compared to any other backhaul service on the block.
"Wireless backhaul" refers to a high speed broadband transmission medium carrying data across two end nodes (e.g., from an access network to the core network operations center) using high-performance Point-to-Point wireless links. A typical wireless backhaul scenario consists of endpoint pairs communicating via a wireless link which carries high-bandwidth, time-sensitive data in a highly secure manner.
Wireless backhaul systems can be deployed by Carriers, WISPs and enterprises according to their individual needs of capacity and range, avoiding hassles of unexpected link failures or exhausting maintenance procedures which are common to copper/fiber networks. Wireless backhaul systems not only accommodate the latest applications involving high speed mobile data, VoIP, and IP video but also add more capacity for legacy voice and data applications. Further, wireless backhaul solutions help service providers cost-effectively expand their existing coverage footprint in no time to fill in coverage holes.
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