A Low-Latency Interference Coordinated Routing for Wireless Multi-Hop Networks

Recently, there has been an increasing interest in exploiting interference cancelation to support multiple adjacent concurrent transmissions instead of avoiding through scheduling. In line with these efforts, this paper propose coordinated routing (ICR) scheme for wireless multi-hop networks achieve more transmission concurrence, and thus lower the end-to-end delay. The proposed ICR firstly constructs initial path by interference-aware algorithm, which captures latency spatial resource cost as metrics. Then, analyze feasibility a given link set, we consider coordination formulate links linear programming (LP) problem. solution LP problem indicates power allocation. Finally, distributed guard zone based selection (GBS) algorithm is further iteratively explore maximum feasible set each time slot. selected are simultaneously active packet allocated current slot, remaining will be put off next. Simulation results confirm that reduces delay 9.16% 73.82%, promotes better concurrence compared existing schemes.