Asymmetric multihop communication in large sensor networks

With the growing interest in wireless sensor networks, energy efficient communication infrastructures for such networks are becoming increasingly important. In this paper, we compare and simulate asymmetric and symmetric communication in sensor networks. We do this by extending LEACH, a well-known TDMA cluster-based sensor network architecture, to use asymmetric communication. The extension makes it possible to scale up the network size beyond what is feasible with LEACH and its variants LEACH-C and LEACH-F.