Wireless Ad hoc Networks: Strategies and Scaling Laws for the Fixed SNR Regime
Shuchin Aeron, Venkatesh Saligrama · 2006
This paper deals with throughput scaling laws for random ad-hoc wireless networks in a rich scattering environment. We develop schemes to optimize the ratio, ρ(n) of achievable network sum capacity to the sum of the point-to-point capacities of source-destinations pairs operating in isolation. For fixed SNR networks, i.e., where the worst case SNR over the source-destination pairs is fixed independent of n, we show that collaborative strategies yield a scaling law of ρ(n) = O ( 1 n 1/3) in contrast to multi-hop strategies which yield a scaling law of ρ(n) = O ( 1