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Cross Layer Design for Optimizing Transmission Reliability, Energy Efficiency, and Lifetime in Body Sensor Networks
Xi Chen1, Yixuan Xu2, Anfeng Liu3
1School of Information Science and Engineering, Central South University, Changsha 410083, China. xchen@csu.edu.cn.
Sensors (Basel, Switzerland)
|April 20, 2017
Summary
A new Cross Layer Design Optimal (CLDO) scheme enhances wireless body area networks (WBANs) by optimizing transmission reliability, energy efficiency, and network lifetime simultaneously. This approach significantly outperforms existing methods.
Area of Science:
- Wireless Body Area Networks (WBANs)
- Network Performance Optimization
- Cross-Layer Design
Background:
- Achieving high transmission reliability, energy efficiency, and long lifetime in WBANs is challenging due to interdependencies.
- Optimizing a single aspect often fails to yield overall system improvements.
Purpose of the Study:
- To propose a Cross Layer Design Optimal (CLDO) scheme for simultaneous optimization of WBAN performance metrics.
- To enhance transmission reliability, energy efficiency, and network lifetime in WBANs.
Main Methods:
- Optimizing transmission power of individual nodes to maximize energy efficiency while meeting delay and jitter requirements.
- Implementing a relay decision algorithm for balanced network energy consumption.
- Synthesizing cross-layer methods involving adaptive transmission power and packet size adjustments based on residual energy and link characteristics.
Main Results:
- The CLDO scheme significantly improves WBAN performance compared to existing methods.
- Experimental results demonstrate enhanced transmission reliability (over 44.6%) and prolonged network lifetime (up to 33.2%) compared to the RSPCG scheme.
Conclusions:
- The proposed CLDO scheme effectively addresses the trade-offs between reliability, energy efficiency, and lifetime in WBANs.
- Cross-layer optimization is a viable strategy for superior WBAN performance.
