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引用本文：

陈晓栋.OFDM双向多跳网络的新型比特和功率分配算法[J].电讯技术，2013，53（3）： - . [点击复制]
CHEN Xiao-dong.A novel bit and power allocation algorithm for OFDM-based two-way multihop network[J].，2013，53（3）： - . [点击复制]

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OFDM双向多跳网络的新型比特和功率分配算法
陈晓栋
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(海军装备部飞机办公室，北京 100071)

摘要:

结合新型双向多跳网络协议和正交频分复用技术，研究旨在保证通信质量情况下的自适应比特和功率分配算法，其目的是以较小发送功率和较高频谱效率完成通信。通过凸优化理论推导出最优功率分配算法，并提出一种基于贪婪原则的自适应比特分配算法，能够以较低的复杂度在实际工程中完成部署。仿真分析表明，提出的双向多跳算法是传统多跳协议频谱效率的2倍，所需发送功率是平均资源分配算法的1/3。

关键词: 双向多跳网络 OFDM 比特分配功率分配

DOI：

基金项目:

A novel bit and power allocation algorithm for OFDM-based two-way multihop network

CHEN Xiao-dong

()

Abstract:

In Orthogonal Frequency Division Multiplexing(OFDM)based twoway mul tihop system, the adaptive bit and power allocation with guaranteed quality of s ervice(QoS) is investigated to complete the twoway communication with the lower power consumption and higher spectral efficiency. Based on convex theo ry, the closedform formulation of optimal power allocation is derived. Then, a greedybased bit allocation algorithm is proposed, which can be implemented in practical scenario with low complexity. The simulation shows that the proposed a lgorithm has twice spectral efficiency than the traditional multihop protocol, w hile the transmit power is 1/3 of average allocation algorithm.

Key words: two way multihop network OFDM bit allocation power allocation