期刊名称：International Journal of Advanced Research In Computer Science and Software Engineering
印刷版ISSN：2277-6451
电子版ISSN：2277-128X
出版年度：2012
卷号：2
期号：4
出版社：S.S. Mishra
摘要：Wireless sensor networks (WSNs) are event-based systems that develop the communal attempt of densely deployed sensor nodes and incessantly observe a certain physical phenomenon. The majority of the communication protocols are individually developed and optimized for different networking layers, i.e., transport, network, medium access control (MAC), and physical layers. While these protocols achieve very high performance in terms of the metrics related to each of these individ ual layers, they are not jointly designed and optimized to maximize the overall network performance while minimizing the energy expenditure. The design principle of XLP is based on the cross-layer concept of initiative determination, which enables receiver-based contention, initiative-based forwarding, local congestion control, and distributed duty cycle operation to realize efficient and reliable communication in WSNs. The initiative determination requires easy comparisons against thresholds, and thus, is very simple to implement, even on computationally constrained devices. XLP significantly improves the communication performance and outperforms the customary layered protocol architectures in terms of both network performance and completion complexity.
