A low-complexity space-time RAKE receiver for DS-CDMA communications

1997 ◽  
Vol 4 (9) ◽  
pp. 262-265 ◽  
Author(s):  
J. Ramos ◽  
M.D. Zoltowski ◽  
Hui Liu
Keyword(s):  
Rake Receiver ◽  
Low Complexity ◽  
Space Time

FULL-RATE AND LOW-COMPLEXITY SPACE-TIME BLOCK CODING CONCATENATED WITH CHANNEL CODES

2007 ◽  
Vol 06 (01) ◽  
pp. 5-14 ◽  
Author(s):  
XIANGBIN YU ◽  
GUANGGUO BI
Keyword(s):  
Channel Coding ◽  
Turbo Code ◽  
Multiple Antennas ◽  
Low Complexity ◽  
Space Time ◽  
System Throughput ◽  
Time Block ◽  
Coding Schemes ◽  
Full Diversity ◽  
Full Rate

Space-time block (STB) coding has been an effective transmit diversity technique for combating fading recently. In this paper, a full-rate and low-complexity STB coding scheme with complex orthogonal design for multiple antennas is proposed, and turbo code is employed as channel coding to improve the proposed code scheme performance further. Compared with full-diversity multiple antennas STB coding schemes, the proposed scheme can implement full data rate, partial diversity and a smaller complexity, and has more spatial redundancy information. Moreover, using the proposed scheme can form efficient spatial interleaving, thus performance loss due to partial diversity is effectively compensated by the concatenation of turbo coding. Simulation results show that on the condition of the same system throughput and concatenation of turbo code, the proposed scheme has lower bit error rate (BER) than those low-rate and full-diversity multiple antennas STB coding schemes.

Low-complexity architecture of rake receiver for multi-code CDMA system

1998 ◽  
Vol 34 (14) ◽  
pp. 1382 ◽  
Author(s):  
Seongjoo Lee ◽  
Sangyun Hwang ◽  
Jaeseok Kim
Keyword(s):  
Rake Receiver ◽  
Low Complexity ◽  
Cdma System

Efficient Space-Time Two Dimensional RAKE Receiver in Asynchronous Cooperative Communications Systems with Full Diversity

2014 ◽  
Vol 536-537 ◽  
pp. 719-725
Author(s):  
Dong Wu Li ◽  
Chang Xing Pei ◽  
Yun Liang Meng
Keyword(s):  
Cooperative Communication ◽  
Communication System ◽  
Cooperative Communications ◽  
High Performance ◽  
Rake Receiver ◽  
Space Time ◽  
Two Dimensional ◽  
Combination Rules ◽  
Performance Space ◽  
Full Diversity

A high-performance space-time two dimensional RAKE receiving algorithm was proposed in asynchronous cooperative communication system. the transmitting signals were estimated coarsely by traditional space-time rake receiver, then on the basis of that we introduce feedback technology, each multipath signal of transmitted signals was composed by the decision results, and then every multipath component in the received signal can be obtained by eliminating the composed multipath signals from the received signal. Finally, the multipath components were combined by space-time combination and multipath combination rules accordingly, so spatial as well as multipath diversities were achieved. Simulation results show that the new scheme can reduce the bit error rate dramatically compare with traditional space-time RAKE in asynchronous cooperative communication system.

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