Performance of energy-aware and link-adaptive routing metrics for ultra wideband sensor networks
Mobile Networks and Applications
Energy efficiency of a per-hop relay selection scheme for sensor networks using cooperative MIMO
International Journal of Sensor Networks
Distributed routing schemes for multi-hop fixed relay networks
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
IEEE Transactions on Communications
Distance-based node activation for geographic transmissions in fading channels
IEEE Transactions on Communications
Node activation to maximize expected progress in wireless networks with energy constraints
MILCOM'09 Proceedings of the 28th IEEE conference on Military communications
Distributed routing schemes with accessibility consideration in multi-hop wireless networks
IEEE Transactions on Wireless Communications
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This paper analyzes the benefit of adaptive routing based on knowledge of the channel state information in multihop, ad hoc wireless networks that use direct-sequence code-division multiple access. Cross-layer, channel-adaptive routing exploits the inherent spatial diversity of multihop wireless networks to select links with favorable channel conditions. The information efficiency, an extension of a previously used measure called expected progress, is used to evaluate performance. Results show that, combined with adaptive modulation, adaptive routing can improve performance in ad hoc networks by a factor of four to five in channels with Rayleigh fading and lognormal shadowing. The lack of position information in the routing decision would reduce performance by 25%. New approaches to channel-adaptive routing that enable rapid adaptivity to channel conditions are discussed.