6533b854fe1ef96bd12adecd

RESEARCH PRODUCT

Cooperative or non-cooperative transmission in synchronous DC WSNs: A DTMC-based approach

Jorge Martinez-bausetLakshmikanth GuntupalliFrank Y. Li

subject

Computer sciencebusiness.industryNode (networking)05 social sciencesReal-time computing050801 communication & media studies020206 networking & telecommunications02 engineering and technologyEnergy consumptionSynchronizationlaw.invention0508 media and communicationsTransmission (telecommunications)RelaylawComputer Science::Networking and Internet Architecture0202 electrical engineering electronic engineering information engineeringbusinessWireless sensor networkEnergy (signal processing)Computer networkEfficient energy use

description

Cooperative transmission (CT) enables balanced energy consumption among sensor nodes and mitigates the energy hole problem in wireless sensor networks (WSNs). In typical CT enabled medium access control (MAC) protocols, a source node decides to trigger CT or not based on a residual energy comparison between itself and its relay node. In this paper, we propose a receiver initiated CT MAC protocol, in which the receiving node makes the decision on initiating CT or not based on a tradeoff between performing CT and non-CT. In this way, nodes can avoid idle listening and achieve an extended lifetime. A discrete-time Markov chain (DTMC) model is developed to analyze the performance of CT associated with synchronous CT MAC protocols. Using this DTMC model, the performance of the protocol is evaluated with respect to energy consumption, energy efficiency and network lifetime. Numerical results demonstrate the accuracy of the model and the effectiveness of CT, in contrast to non-CT, as it leads to balanced energy consumption and an optimal network lifetime.

yearjournalcountryeditionlanguage
2017-05-012017 IEEE International Conference on Communications (ICC)
https://doi.org/10.1109/icc.2017.7996713