Energy-efficient packet transmission over a wireless link
IEEE/ACM Transactions on Networking (TON)
Throughput capacity of random ad hoc networks with infrastructure support
Proceedings of the 9th annual international conference on Mobile computing and networking
Data-gathering wireless sensor networks: organization and capacity
Computer Networks: The International Journal of Computer and Telecommunications Networking - Special issue: Wireless sensor networks
The capacity of wireless networks
IEEE Transactions on Information Theory
Minimum energy mobile wireless networks
IEEE Journal on Selected Areas in Communications
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The many-to-one communication paradigm is extremely relevant in the emerging contexts of hybrid wireless networks as well as data gathering sensor networks. In this model of communication the point of data-convergence (base-station) becomes a bottleneck, thereby imposing a trivial upper bound of W on achievable aggregate capacity [1] where W is the maximum transmission rate possible. Some earlier work on many-to-one communication has considered hierarchical schemes wherein nodes are organized into clusters and intra-cluster communication occurs over a different channel than cluster-head to base-station (BS) communication [1], [2]. However we observe that even within the constraint of a single channel, it is possible to harness the potential for spatial re-use available in the network to obtain greater energy-efficiency while maintaining the same aggregate rate. We envisage a mechanism that exploits the non-linearity inherent in Shannon's equation: W = B log (1 + SINR), and improves on energy consumption by replacing a single high rate transmission with many spatially spread out low rate ones.