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Signal detection for an asynchronous 4-relay-node cooperative cellular system using Distributed Space-Time Coding (DSTBC) on the uplink is investigated in this paper, where co-channel interference (CCI) limits the system capacity more than thermal noise and inter-symbol-interference (ISI) caused by the imperfectly synchronized cooperating relays greatly degrades the system performance. Most research...
In this paper, a MMSE based signal detector with interference cancellation (MMSE-IC) is proposed for a two-way relay channel using the decode-and-forward strategy, including two single-antenna source nodes and a multiple-antenna relay node. It is demonstrated that by using the proposed MMSE-IC detector, the BER at the relay when extracting the information of the two source nodes in the multiple-access...
A signal detection technique using successive interference cancellation (SIC) for uplink cooperative cellular systems is proposed in this paper, to suppress the interference caused by the cooperative transmission of two mobile users transmitting both their own information and the cooperative partner's information using distributed space-time coding (DSTC). Simulation results show that the proposed...
This paper investigates the interference cancellation for a cognitive radio based CDMA system, and the object is to reduce the interference both to the primary and the cognitive users. We propose a beamforming scheme in which the cognitive users operate in the licensed band without causing any interference to the primary user, while employing the interference cancellation technology at the receive...
In this paper, a simple and effective PIC (Parallel Interference Cancellation) method without pilot was proposed for the case that the signal transmission under the imperfect synchronization from relay nodes to the destination node. This scheme utilizing iteration cancels the interference components in the received signals. Applying two antennas in destination node, the effect of this proposed method...
In this paper, we propose a detection and decoding scheme for a MIMO system using space-time codes (STBC) with external interferences. It is known that current cellular systems are limited by co-channel interference (CCI) more than thermal noise. However, traditional linear decoding schemes have rather poor performance in decoding STBC in this interference-limited environment. To achieve good BER...
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