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A good data transmission protocol should balance energy consumption, packets collision and some other factors well. The traditional layer protocol can't sufficiently meet the complex requirement of data transmission, so a cross-layer transmission protocol that is tree based power controlled (TBPC) is proposed. In TBPC, transmission power of regarded as a key factor, and it can be designed a series...
Different from the traditional layer protocols, layering optimization can improve QoS of the whole wireless sensor network (WSN). Therefore, a novel power-aware layering optimization scheme is proposed to balance network lifetime and communication reliability. In the scheme, a directed spanning tree routing algorithm is discussed to resolve unnecessary energy consumption during data transmission....
In wireless sensor networks (WSNs), a challenging problem is how to advance network QoS. Energy-efficiency, network communication traffic and failure-tolerance, these important factors of QoS are closely related with the applied performance of WSNs. Hence a QoS-aware routing protocol called directed alternative spanning tree (DAST) is proposed to balance the above three factors of QoS. A directed...
In wireless sensor networks (WSNs), lifetime and failure-tolerance seem to be a part of contradiction. The traditional spanning tree mostly focuses on network lifetime, and use data-aggregation to save network energy. In order to keep the whole network available during nodes failure, a routing protocol that is called balanced-alternative spanning tree (BAST) is proposed. This routing protocol has...
In wireless sensor networks (WSN), two major challenges are to maximize network lifetime and to enhance the tolerance of networks. Both of them are related to routing protocol. Therefore, a routing protocol that is called directed spanning tree (DST) is proposed. In this paper, the construction of directed tree-based communication path and the data aggregation mechanism based on DST are discussed...
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