Soft-Decision Multiple-Symbol Differential Sphere Detection and Decision-Feedback Differential Detection for Differential QAM Dispensing with Channel Estimation in the Face of Rapidly Fading Channels
نویسندگان
چکیده
منابع مشابه
Multiple-Symbol Decision-Feedback Space-Time Differential Decoding in Fading Channels
Space-time differential coding (STDC) is an effective technique for exploiting transmitter diversity while it does not require the channel state information at the receiver. However, like conventional differential modulation schemes, it exhibits an error floor in fading channels. In this paper, we develop an STDC decoding technique based on multiple-symbol detection and decisionfeedback, which ...
متن کاملLinear Equalization Combined with Multiple Symbol Decision Feedback Detection for Differential Space-Time Modulation
Differential space-time modulation (DSTM) for multiple antenna communication systems has been recently proposed for frequency-nonselective fading channels. In broadband multirate systems, frequency-selective fading may occur. In this paper, the DSTM in frequency-selective fading channels is considered. A linear equalizer for the DSTM is proposed over frequency-selective fading channels. Further...
متن کاملDecision-feedback differential detection of MDPSK for flat Rayleigh fading channels
In this paper, decision{feedback di erential detection (DF{DD) ofM{ary di erential phase{shift keying (MDPSK) signals, which has been introduced previously for the additive white Gaussian noise (AWGN) channel by Leib et al. [1] and Edbauer [2], is extended to at Rayleigh fading channels. The DF{DD metric is derived from the multiple{symbol detection (MSD) metric and for error{free feedback an e...
متن کاملDecision{feedback Differential Detection for 16dapsk Transmitted over Ricean Fading Channels
In this paper, a novel decision{feedback di erential detection (DF{DD) scheme based on linear prediction is proposed for 16{level di erentially encoded amplitude{phase{shift keying (16DAPSK). Unlike previously proposed DF{DD schemes, this scheme does not only provide a performance gain over conventional di erential detection (DD) under additive white Gaussian noise (AWGN) conditions but also un...
متن کاملDecision directed channel estimation in 16-QAM on fading channels
A coherent detector for differentially encoded 16-QAM on Rayleigh fading channels is presented. An FIR-filter with previous received samples as input delivers an MMSE estimate of the fading process, providing the carrier reference needed for coherent detection. This estimation is assisted by previous decisions. The bit error performance of the proposed detector is analysed for the first-event b...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Wireless Communications
سال: 2016
ISSN: 1536-1276
DOI: 10.1109/twc.2016.2541665