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To guarantee the next generation narrow band systems from Ultra Wideband (UWB) interference, the coexistence issue between OFDM-MIMO system and UWB system is studied in the indoor environment, using physical layer model simulation method. Based on the corresponding standards, OFDM-MIMO and UWB system models are established with the SIMULINK tool. Considering the environment and system parameters,...
Considering the potential interference of ultra-wideband (UWB) on narrowband communication systems, this paper studies coexistence issue between UWB with both impulse radio (IR) and multiband (MB) modulation and IEEE802.11n system, using physical layer modelling strategy. According to the physical characteristics of UWB and the victim system, entire physical layer models are set up. Based on the requirements...
Cognitive Radio (CR) has attracted much attention for its ability allowing secondary users (SUs) to share the spectrum with licensed users (PUs). The precondition that PUs bear the coexistence of SUs is that the interference caused by SUs should be under a given threshold. Therefore the main challenge of CR is interference control or even interference cancellation. In this work we employ zero-forcing...
In this work, we study the performance of rate-compatible punctured convolutional (RCPC) coded cooperation system. Theoretical bit error probability is deduced over slow Rayleigh fading channel based on the characteristics of RCPC codes and coded cooperation. The coded cooperative system obtains two inherent benefits, such as achieving the spatial diversity offered by the relay channel and also the...
An array processing based decoder for the quasi-orthogonal space-time block code (QO-STBC) has been analyzed in our former work. It is investigated in terms of complexity and symbol error ratio (SER) under the assumption that perfect channel state information (CSI) is known to the receiver. As in wireless communication scenarios, it is prohibitive to get the perfect knowledge of channel. So it is...
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