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中文摘要：
为了解决多信道路由同频信道分集的难题,有效提高系统频谱利用率,提出一种新的具有网络编码意识的多信道路由判据（WCECTT）,在选路阶段量化网络编码后传输的性能优势,综合考虑无线信道传输信道差错及干扰的影响,使用能体现网络编码性能优势的判据进行多信道路由选择.仿真结果表明,该机制在无线多跳网络中能有效地增强节点对数据的处理能力,与传统多信道判据相比,系统吞吐量有10%~20%的增益.
英文摘要：
The problem of intra-channel diversity in multi-channel routing can be relived efficiently using a technology proposed here called ＂network coding＂. It leads to an increase of the spectral efficiency. In this framework, a coding-aware metric weighted cumulative coding-aware expected transmission time （WCECTT） for multi-channel routing is proposed. It can fairly quantify the network coding gain when considering the wireless transmission conditions and intra-frequency interference. This metric can be used to determine the optimum path from the coding-available paths and the coding-unavailable ones. We implement the WCECTT routing in wireless mesh system and conduct extensive evaluation. Simulations illustrate that, when compared with coding gains using, the transmission efficiency can be sharply increased in the whole network and achieves 10 % -20 % throughput gains.
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