caa a22 4500 475789490 CHVBK 20180406123707.0 cr unu---uuuuu 170329e20000801xx s 000 0 eng 10.1023/A:1019125029959 doi (NATIONALLICENCE)springer-10.1023/A:1019125029959 Performance analysis of a convolutional coded DS/CDMA system in Nakagami fading channels [Elektronische Daten] [Young Lee, Chae Chung, Sung Cho] In this paper, we investigate the performance of convolutional coded DS/CDMA with noncoherent M-ary orthogonal modulation operating in a multi-user environment over a slow and frequency nonselective Nakagami-m fading channel with additive white Gaussian noise (AWGN). An expression for the pairwise error probability that can be used to compute the upper bound of coded system is first derived. Performance of the DS/CDMA system with and without the convolutional codes is then presented. We have observed that convolutional codes can compensate for the degradation quite well in multi-user situations over Nakagami fading channels with AWGN. For the case of an extreme fading, however, it has been seen that the convolutional code reaches its limit to improve the overall system performance as the number of users increase. Kluwer Academic Publishers, 2000 Lee Young Protocol Engineering Center, Electronics and Telecommunications Research Institute, 161 Kajong‐Dong, Yusong‐Gu, 305‐350, Taejon, Korea aut Chung Chae Telecommunication Systems Division, Hyundai Electronics Industries Co. Ltd, 467‐701, Ichon, Kyunggi‐Do, Korea aut Cho Sung School of Electrical and Computer Engineering, Hanyang University, 425‐791, Ansan, Kyunggi‐Do, Korea aut Telecommunication Systems Kluwer Academic Publishers 14/1-4(2000-08-01), 31-45 1018-4864 14:1-4<31 2000 14 11235 https://doi.org/10.1023/A:1019125029959 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1019125029959 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lee Young Protocol Engineering Center, Electronics and Telecommunications Research Institute, 161 Kajong‐Dong, Yusong‐Gu, 305‐350, Taejon, Korea aut NATIONALLICENCE 700 1- Chung Chae Telecommunication Systems Division, Hyundai Electronics Industries Co. Ltd, 467‐701, Ichon, Kyunggi‐Do, Korea aut NATIONALLICENCE 700 1- Cho Sung School of Electrical and Computer Engineering, Hanyang University, 425‐791, Ansan, Kyunggi‐Do, Korea aut NATIONALLICENCE 773 0- Telecommunication Systems Kluwer Academic Publishers 14/1-4(2000-08-01), 31-45 1018-4864 14:1-4<31 2000 14 11235 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer