2025/12/10 by Zhongyuan Zhao, Yujun Ming, Zhao, Zhongyuan +9
Engineering · Computer Science · #Advanced Wireless Network Optimization #Wireless Networks and Protocols #Mobile Ad Hoc Networks
paper · pdf · doi:10.48550/arxiv.2512.09902
Backpressure (BP) routing and scheduling is an established resource allocation method for wireless multi-hop networks, noted for its fully distributed operation and maximum queue stability. Recent advances in shortest path-biased BP routing (SP-BP) mitigate shortcomings such as slow startup and random walks, yet exclusive link-level commodity selection still causes last-packet problem and bandwidth underutilization. By revisiting the Lyapunov drift theory underlying BP, we show that the legacy exclusive commodity selection is unnecessary, and propose a Maximum Utility (MaxU) link-sharing method to expand its performance envelope without increasing control message overhead. Numerical results show that MaxU SP-BP substantially mitigates the last-packet problem and slightly expands the network capacity region.