| 摘要: |
| 将接近理想方案的序数偏好法(TOPSIS)应用于认知无线电网络的频谱切换中，通过对
影响切换性能的4个参数的融合，设计了一种基于TOPSIS算法的信道排序方案，通过仿真验
证，设计了各参数的权值。统计结果表明，提出的算法在80%的情况下要优于传统的切换算
法，可以有效减少认知用户的切换次数，提高有效数据传输速率，降低认知用户的通信中断
概率。 |
| 关键词: 认知无线电网络 频谱切换 TOPSIS算法 信道排序 通信中断
概率 |
| DOI： |
|
| 基金项目: |
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| A novel spectrum handoff scheme based on TOPSIS channel order algorithm |
| JIANG Jin-bo,WANG Ke-ren,FU Xin,XIONG Zui |
| () |
| Abstract: |
| The TOPSIS (Technique for Order Preference by Similarity to Ideal Solution) algo
rithm is applied to spectrum handoff in cognitive radio networ
k. Through syncretizing the four parameters which have influence on capabilities
of spectrum handoff, a channel order scheme based on TOPSIS is designed. The we
ight of every parameter is designed by simulation result.Simulation results s
how that the algorithm proposed in this paper exceeds traditional algorithm in 8
0% and it can shorten the handoff times, improve the effective data rate and dec
line the outage probability of secondary users in communication. |
| Key words: cognitive radio network spectrum handoff TOPSIS algorithm channel order outage p
robabi
lity of communication |
