Differential space-time joint interference cancellation and decoding

2004 ◽  
Author(s):  
N. Al-Dhahir
Keyword(s):  
Interference Cancellation ◽  
Space Time

Space–Time Block Coding Iterative Multiuser Receiver

2003 ◽  
Vol 12 (01) ◽  
pp. 19-30
Author(s):  
Hong Rui Jiang ◽  
Kyung Sup Kwak
Keyword(s):  
Multiuser Detection ◽  
Channel Coding ◽  
Interference Cancellation ◽  
Space Time ◽  
Time Block ◽  
Block Coding ◽  
Space Time Block Coding ◽  
Multiuser Receiver ◽  
Single User ◽  
User Space

We present a multiuser receiver for CDMA systems with the combination of turbo channel coding and space–time block coding. A turbo scheme based on multiuser detection, soft interference cancellation and decoding is provided, and the algorithms for space–time decoding and separately interference suppressing are derived in this paper. The multiuser detection consists of multiuser interference suppression and single-user space–time decoding. Then we develop the iterative multiuser receiver based on the soft estimates of the interfering users' symbols. Moreover, simulation is given to verify the effectiveness of the multiuser receiver.

An Interference Cancellation Space-Time RAKE Receiver in Asynchronous Cooperative Communications Systems

2014 ◽  
Vol 644-650 ◽  
pp. 4152-4156
Author(s):  
Dong Wu Li ◽  
Chang Xing Pei ◽  
Yun Liang Meng
Keyword(s):  
Cooperative Communication ◽  
Communication System ◽  
Interference Cancellation ◽  
Cooperative Communications ◽  
High Performance ◽  
Rake Receiver ◽  
Multipath Fading ◽  
Spatial Diversity ◽  
Space Time ◽  
Multipath Signal

Space-time two dimensional RAKE receiver was introduced into asynchronous and cooperative communication system, and a high-performance RAKE receiving algorithm was proposed. In this algorithm, the transmitting signals were estimated coarsely by traditional space-time rake receiver, then each multipath signal was reconstructed using the estimated result as well as the channel impulse response, and then eliminated successively from reception signals, so it can eliminate Inter Symbol Interference of receiver signals which generate by multipath fading, and the line of sight (LOS) component in the received signal was obtained, and finally, the space-time combination was carried out to the LOS component, and the spatial diversity was achieved. This algorithm can effectively reduce the bit error rate of the asynchronous cooperative communication system. Simulation result shows that the new algorithm can improve the performance of traditional space-time RAKE when SNR is higher than 5dB dramatically.

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