Wireless Local Loop Standards and Systems

In this tutorial presentation basic principles and applications of Wireless Local Loops (WLL) systems are reviewed. WLL Technology is described and major mobile-radio based and proprietary radio interface standards are explored. Spectrum and capacity issues of WLL based on cellular radio principles are presented, and economic aspects of wired and wireless loops are compared. Broadband applications of WLL are also briefly outlined. Keywords: wireless local loop; fixed wireless access; radio in the loop; cellular radio; local access; wireless communication standards