Intra-cell interference management for fixed broadband wireless systems

We study the interference management and resource allocation problem in a packet-switched, fixed, broadband, time division multiple access (TDMA) wireless system. The capacity of this kind of system is limited by the co-channel interference, which arises from both inter-cell and intra-cell transmissions. The intra-cell interference management and resource allocation, which significantly impacts the system performance, is the focus of this study. The goal is to design efficient resource allocation schemes to combat intra-cell interference so as to improve the system capacity and service quality. We address the following issues: (i) estimating the optimal capacity of the system; and (ii) proposing resource allocation schemes with reasonable complexity, which are close to optimal. Two resource allocation schemes are proposed, the max-min scheduling protocol (MMSP) and revisited max-min scheduling protocol (RMMSP). We show via simulations that these schemes provide close to optimal performance