Bandwidth allocation for TDMA-based wireless local loops

Wireless local loops are of interest due to their many advantages over the wireline systems. However, the bandwidth allocation schemes in wireless loc al loops are different from that of the cellular networks in some aspects s ince the terminals are fixed. In this paper, we propose a strategy of bandw idth allocation for time-division multiple-access based wireless local loop s, We align the sectors assigned the same channels such that the cochannel interference is reduced, In the performance evaluation, we demonstrate that the proposed scheme improves the bandwidth efficiency and increases system capacity with minimal loss of signal-to-interference ratio.