Title :
Correlation-based sphere decoder for time-varying OFDM systems
Author :
Chengzhi, F. ; Sidan, D. ; Liangfang, N.
Author_Institution :
Dept. of Electron. Eng., Nanjing Univ.
Abstract :
A sphere decoder (SD) method with a novel ordering mechanism for blind signal detection of time-varying (TV) OFDM system is proposed. This method exploits the time-frequency response correlation between adjacent OFDM subchannels or time-slots, Different from other SD ordering mechanisms, this new mechanism incorporates an error-amplifying strategy which could greatly reduce the SD search complexity
Keywords :
OFDM modulation; codecs; correlation methods; time-varying systems; blind signal detection; correlation-based sphere decoder; time-frequency response correlation; time-varying OFDM systems;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20070173
