Low-Density Graph Codes for Coded Cooperation on Slow Fading Relay Channels
نویسندگان
چکیده
منابع مشابه
Performance analysis of protograph low-density parity-check codes for nakagami-m fading relay channels
In this study, the authors investigate the error performance of the protograph (low-density parity check) codes over Nakagami-m fading relay channels. The authors first calculate the decoding thresholds of the protograph codes over such channels with different fading depths (i.e. different values of m) by exploiting the modified protograph extrinsic information transfer (PEXIT) algorithm. Furth...
متن کاملOutage probability of coded cooperation for slow fading channel
This letter presents the outage probability of the Reed Solomon (RS) coded cooperation scheme. In this scheme, the codeword of the Users are partitioned into two frames and transmitted through two independent fading channels. The first frame is transmitted directly to the base station. The second frame is transmitted via a partner to the base station. The derived outage expressions confirm that...
متن کاملA LDPC-Coded Distributed Alamouti Space-time Relay Cooperation Scheme over Rayleigh Fading Channels
An efficient distributed Alamouti Space-time coded relay cooperation scheme is proposed over a Rayleigh fading channel, where structured irregular systematic low-densityparity-check (LDPC) codes are employed. In the known channel state information (CSI) scenario, a concatenation of combiner and joint iterative decoder is effectively carried out in the destination. The theoretical analysis and n...
متن کاملCooperative Regions For Coded Cooperation Over Time-Varying Fading Channels
The performance analysis of coded cooperation has been mainly focused on two extreme cases of channel variability, i.e. the block-fading (BF) and the fast-fading (FF) model. In more practical propagation environments the fading correlation across time depends on the level of user mobility. This paper analyzes the effects of time-selective fading on the performance of coded cooperation by provid...
متن کاملAdaptive Modulation in Coded Cooperation under Rayleigh Fading Channels
Cooperative communication provides a new way of introducing spatial diversity to wireless systems. In order to increase the spectral efficiency of coded cooperative relaying system, the adaptive modulation technique is presented under Rayleigh fading channel in this paper. The source and relay adapt their modulation schemes based on the channel condition of all three links, i.e. source to relay...
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 Information Theory
سال: 2011
ISSN: 0018-9448,1557-9654
DOI: 10.1109/tit.2011.2145470