Distributed SIR-Aware Scheduling in Large-Scale Wireless Networks
Opportunistic scheduling and routing can in principle greatly increase the throughput of decentralized wireless networks, but to be practical such algorithms must do so with small amounts of timely side information. In this paper, the authors propose three related techniques for low-overhead Distributed Opportunistic Scheduling (DOS) and precisely determine their affect on the overall network outage probability and Transmission Capacity (TC). The first is Distributed Channel-Aware Scheduling (DCAS), the second is Distributed Interferer-Aware Scheduling (DIAS), and the third generalizes and combines those two and is called Distributed Interferer-Channel-Aware Scheduling (DICAS). One contribution is determining the optimum channel and interference thresholds that a given isolated transmitter should estimate and apply when scheduling their own transmissions.