摘要：文章主要討論了頻率非選擇性Nakagami衰落信道條件下CCK調制接收機設計及性能分析.文中給出了平坦Nakagami衰落信道下CCK調制的ML接收機及其簡化結構，提出了基于馬庫姆Q函數近似邊界的錯誤概率上邊界，并與非相干解調及QPSK調制加以比較，仿真結果顯示所設計的接收機在多徑信道下具有良好的抗多徑衰落性能。
關鍵詞：補碼鍵控調制 馬庫姆Q函數 頻率非選擇性Nakagami衰落信道
The design and performance analysis of CCK receiver in frequency-unselective Nakagami-fading channels
Si xiaodong1 Su yong2
1(Information center of Unit 91917, PLA NAVY 100360)
2(Institute of Computing Technology, Chinese Academy of Sciences, 100190)
Abstract ：This paper mainly discusses a design of receiver of CCK modulation and the analyses of performance on non-frequency-selective Nakagami slow fading channel， A ML receiver of CCK modulation and the sampled structure of it is proposed. based on Marcum Q-function tight bound， the error rate is derived for the sampled structure receiver and compared with the  noncoherent demodulation and the QPSK modulation. the simulation results show that the receiver designed of CCK modulation have great performance of anti fading on Multipath fading channel.
Key words ：CCK(complementary code keying) modulation  Marcum Q-function non-frequency-selective Nakagami slow fading channel

參考文獻：
[1] IEEE Standard 802.11b， Part 11： Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications –Higher Speed Physical Layer Extension in the 2.4 GHz Band，1999.
[2] M.A. Webster et al. Rake Receiver with Embedded Decision Feedback Equalizer， May 2001. United States Patent， No.： US 6，233，273 B1.
[3] H. Luo and R.-W. Liu. Apply Autocorrelation Matching Method to Outdoor Wireless LAN on Co–Channel Interference Suppression and Channel Equalization. In Wireless Communications and Networking Conference， pages 459–464， March 2002.
[4] C. Jonietz， W. Gerstacker， and R. Schober： Receiver Concepts for WLAN IEEE 802.11b. International Conference on Source and Channel Coding， Erlangen ， Germany ， January 2004.
[5] Younggyun Kim， Member， IEEE， and Jaekyun Moon ：CCK Demodulation via Symbol Decision Feedback Equalizer IEEE COMMUNICATIONS LETTERS， VOL. 8， NO. 10， OCTOBER 2004
[6] 李唐 梅輝“基于MATLAB的Nakagami衰落信道仿真與分析”.重慶郵電學院學報 2004 Vol.16 No.3 pp，69-72.
[7] GRADSHTEIN，I.S and RYZHIK，I.M： ‘Table of integrals， series and products’(Aacdemic Press， New York，1980).
[8] Chiani， M.，‘Integral representation and bounds for Marcum Q-function Electronics Letters’ (pp. 445-446)Vol. 35， No. 6， 18 March 1999

作者簡介：
司曉東 畢業于南京解放軍理工大學光纖通信工程專業（原解放軍通信工程學院），現就職于海軍91917部隊信息中心，任工程師