| Performance Analysis of Post-Detection Combining for NFSK and DPSK Systems over Arbitrarily Correlated Nakagami Channels with Distinct Fading Parameters |
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| 作者姓名： | 杭大明 崔晓伟 曹志刚 |
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| 作者单位： | Department of Electronic Engineering Tsinghua University，Beijing 100084 China，Department of Electronic Engineering Tsinghua University，Beijing 100084 China，Department of Electronic Engineering Tsinghua University，Beijing 100084 China |
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| 摘 要： | Introduction Diversity reception, which counters fading and inter- ference in the physical layer and improves system per- formance, is a design methodology used to overcome multipath fading on wireless channels. Various com- bining schemes have been studi…
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| 关 键 词： | NFSK系统 DPSK系统 差分相移键控 非相干移频键控 分集接收 Nakagami信道 信道衰退 检波后合并 |
| 收稿时间： | 2004-04-15 |
| 修稿时间： | 2004-04-152004-10-23 |
Performance Analysis of Post-Detection Combining for NFSK and DPSK Systems over Arbitrarily Correlated Nakagami Channels with Distinct Fading Parameters |
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| Daming Hang,
&#x;, Xiaowei Cui,
&#x;ÿ,Zhigang Cao, ý
.Performance Analysis of Post-Detection Combining for NFSK and DPSK Systems over Arbitrarily Correlated Nakagami Channels with Distinct Fading Parameters[J].Tsinghua Science and Technology,2006,11(1):32-37. |
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| Authors: | Daming Hang
&#x; Xiaowei Cui
&#x;ÿ Zhigang Cao ý
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| Institution: | Department of Electronic Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | For differential phase shift keying (DPSK) and noncoherent frequency shift keying (NFSK) sys- tems over fading channels, the post-detection combining method is a popular means for improving the bit error performance. However, the bit error performance of such systems over Nakagami channels with an arbitrary covariance matrix and real distinct fading parameters has been seldom described in the literature. This paper studies the problem using a generic correlated Nakagami fading model and presents a closed form solution which is used to study the influence of the fading parameters and the signal-to-noise ratio (SNR) distribution ratios among all the branches on the bit error performance. Moreover, the average SNRs of each branch are not restricted to one value in the analysis. The closed form solution developed for the problem can be used to study the influence of the fading parameters and the SNR distribution ratios on the error performance. |
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| Keywords: | differential phase shift keying (DPSK) noncoherent frequency shift keying (NFSK) diversity reception Nakagami channels |
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