CDMA-based MAC protocol for wireless ad hoc networks
Proceedings of the 4th ACM international symposium on Mobile ad hoc networking & computing
An adaptive energy-efficient MAC protocol for wireless sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
Ad Hoc Wireless Networks
Power Optimal Connectivity and Capacity in Wireless Sensor Networks
CSSE '08 Proceedings of the 2008 International Conference on Computer Science and Software Engineering - Volume 04
A Cross-Layer Strategy for Energy-Efficient Reliable Delivery in Wireless Sensor Networks
IEEE Transactions on Wireless Communications
IEEE Communications Magazine
An integrated cross-layer study of wireless CDMA sensor networks
IEEE Journal on Selected Areas in Communications
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Energy efficient reliable communication is a major challenge for resource constrained wireless sensor networks WSNs. This paper evaluates the end-to-end performance of a CDMA-based static multi-hop WSN with layered architecture in shadowed environment. Two popular information delivery mechanisms with error control are considered. End-to-end error correction and control using HARQ-type I with Bose Chaudhuri Hocquenghem BCH coding is considered, where BCH decoding is used only at the sink which has enough power to run the complex decoding algorithm. Performance of the network system using hop by hop ARQ mechanism at every intermediate node is also compared with that of end-to-end error control scheme. An interference model for multi-hop is presented considering correlation amongst shadow faded interferers. Energy requirement, and delay for successful delivery of a data packet from a source to sink is evaluated for each packet transmission scheme considering a suitable energy model and compared under several conditions of node density, packet length, number of hops between source and sink. Further energy efficiency for each scheme is evaluated and compared. Analytical results are supported by simulation.