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In this paper, we analyze and simulate performance of space time block coded (STBC) binary pulse amplitude modulation-direct sequence (BPAM-DS) ultra-wideband (UWB) systems with double binary turbo code in indoor environments. The indoor wireless channel is modeled as a modified Saleh and Valenzuela (SV) channel, which is proposed as a UWB indoor channel model by IEEE 802.15.SG3a. From simulation...
In this paper, the performance of a double binary turbo coded space time block code-ultra wide band (STBC-UWB) system is analyzed and simulated in multi-user environments. From the simulation results, it is demonstrated that the double binary turbo coding technique offers considerable coding gain with reasonable encoding and decoding complexity. It is confirmed that the double binary turbo coding...
In this paper, we analyze and simulate the iterative decoding performance of space time block coded (STBC) pulse position modulation-time hopping (PPM-TH) ultra-wideband (UWB) systems in indoor environments. The indoor wireless channel is modeled as a modified Saleh and Valenzuela (SV) channel, which is proposed as a UWB indoor channel model by IEEE 802.15.SG3a. In order to reduce the iterative decoding...
Ultra wide-band (UWB) indoor channel is highly time scattered with large number of multi-path and a transmit power of UWB systems is limited to low level. One method to overcome these weak points of UWB communication is diversity combining technique. In this paper, we simulate and analyze performance of pulse position modulation-time hopping (PPM-TH) UWB systems adopting a space time block coding...
A recent trend of research on the MIMO-OFDM system pays more attention to reduce complexity for implementation in design receiver structure. So in this paper, we propose differential space time block codes (STBC) MIMO-OFDM system with cyclic delay diversity (CDD) in a frequency selective fading channel. Differential modulation provides simplification of embodiment communication system because channel...
In a conventional MIMO-OFDM system, it is well known that cyclic delay diversity (CDD) and space-time block coding (STBC) can increase data rate, capacity and bit error rate (BER) performance. However, a recent trend of research on the MIMO-OFDM system pays more attention to simplified implementation of receiver structure. In this paper, we propose differential STBC MIMO-OFDM system with CDD. This...
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