We propose a physical layer (PHY) caching scheme for wireless ad hoc networks. The PHY caching exploits cacheassisted multihop gain and cache-induced dual-layer CoMP gain, which substantially improves the throughput of wireless ad hoc networks. In particular, the PHY caching scheme contains a novel PHY transmission mode called the cache-induced dual-layer CoMP, which can support homogeneous opportunistic CoMP in the wireless ad hoc network. Compared with traditional per-node throughput scaling results of 1/ √ N , we can achieve O(1) per node throughput for a cached wireless ad hoc network with N nodes. Moreover, we analyze the throughput of the PHY caching scheme for regular wireless ad hoc networks and study the impact of various system parameters on the PHY caching gain. Cache-induced dual-layer CoMP, Scaling laws.
A PHY caching scheme called cache-induced dual-layer CoMP was proposed in REF , providing asymptotic scaling laws of wireless ad hoc network with such scheme.
Asymptotic Scaling Laws of Wireless Ad Hoc Network With Physical Layer Caching
IEEE Transactions on Wireless Communications
IEEE Transactions on Wireless Communications
Mathematics Computer Science