{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2022,6,2]],"date-time":"2022-06-02T03:40:20Z","timestamp":1654141220832},"reference-count":11,"publisher":"IGI Global","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2012,7,1]]},"abstract":"<p>Multi-antenna techniques can be used to achieve improved system performance, including improved system capacity (more users per cell) and improved coverage (possibility for larger cells), as well as improved service provisioning, for example, higher per-user data rates. This study provides an overview of space-time diversity technique using Alamouti codes applied to the 3G evolution. The delays introduced by HARQ retransmission decrease the performance of the HSDPA system. Multi-antenna techniques are specifically applied to HSDPA to avoid HARQ retransmissions. The authors demonstrate that space-time Rake detector in MIMO 2x2 based on Alamouti code without HARQ process could give better performances than MIMO 2x1 taking into account the HARQ context. In the case of MIMO 2x2,they also observed that the limit of retransmissions affects the system performance and efficiency. Using the generalized Alamouti coding technique in MIMO 4x4 with Multipath Parallel Interference Canceller (MPIC) detector, we achieve notable improvement of performance under the same channel and signal to-Noise Ratio (SNR) conditions.<\/p>","DOI":"10.4018\/jmcmc.2012070105","type":"journal-article","created":{"date-parts":[[2013,2,5]],"date-time":"2013-02-05T22:23:40Z","timestamp":1360103020000},"page":"71-86","source":"Crossref","is-referenced-by-count":0,"title":["Performance Evaluation of Space-Time and Harq Diversity in MIMO HSDPA"],"prefix":"10.4018","volume":"4","author":[{"given":"Walid","family":"Hakimi","sequence":"first","affiliation":[{"name":"Sys\u2019Com Laboratory,National School of Engineering, Tunis, Tunisia"}]},{"given":"Ammar","family":"Mahmoud","sequence":"additional","affiliation":[{"name":"Sys\u2019Com Laboratory, National School of Engineering, Tunis, Tunisia"}]}],"member":"2432","reference":[{"issue":"8","key":"jmcmc.2012070105-0","doi-asserted-by":"crossref","first-page":"1451","DOI":"10.1109\/49.730453","article-title":"A simple diversity technique for wireless communications.","volume":"16","author":"S. M.Alamouti","year":"1998","journal-title":"IEEE Journal on Selected Areas in Communications"},{"key":"jmcmc.2012070105-1","unstructured":"Hakimi, W., Ammar, M., Bouallegue, A., & Saoudi, S. (2008a). Investigation of hybrid ARQ performance for HSDPA over block fading channel. In Proceedings of the 4th International Symposium on Image\/Video Communications over Fixed and Mobile Networks, Bilbao, Spain."},{"key":"jmcmc.2012070105-2","doi-asserted-by":"crossref","unstructured":"Hakimi, W., Ammar, M., Bouallegue, A., & Saoudi, S. (2008b). A generalised wideband space-time MIMO channel simulator based on the geometrical multi-radii one-ring model. In Proceedings of the 67th IEEE Vehicular Technologie Conference.","DOI":"10.1109\/VETECS.2008.267"},{"key":"jmcmc.2012070105-3","unstructured":"Hakimi, W., Ammar, M., Bouallegue, A., & Saoudi, S. (2008c, July). Join MIMO and inter-path interference cancellation for HSDPA. In Proceedings of the 4th International Symposium on Image\/Video Communications over Fixed and Mobile Networks, Bilbao, Spain."},{"issue":"4","key":"jmcmc.2012070105-4","first-page":"415","article-title":"Adaptive quasi-orthogonal space time block codes using partial feedback in MIMO HSDPA.","volume":"3","author":"W.Hakimi","year":"2009","journal-title":"International Journal of Computational Science"},{"key":"jmcmc.2012070105-5","unstructured":"Hakimi, W., Ammar, M., & Saoudi, S. (2010, September). Iterative channel estimation in MIMO HSDPA with QSTBC codes and MPIC receiver. In Proceedings of the 6th International Symposium on Turbo Codes and Iterative Techniques, Brest, France."},{"key":"jmcmc.2012070105-6","author":"W.Lee","year":"2007","journal-title":"Mobile communications engineering"},{"issue":"5","key":"jmcmc.2012070105-7","first-page":"662","article-title":"Flexible space-time block codes for trading quality of service against data rate in MIMO UMTS.","author":"C. F.Mecklenbrauker","year":"2004","journal-title":"EURASIP Journal on Applied Signal Processing"},{"key":"jmcmc.2012070105-8","unstructured":"rd Generation Partnership Project. (2004). 3GPP TS 25.212 V6.2.0: Multiplexing and channel coding (FDD), V6.2.0. Sophia-Antipolis, France: Author."},{"key":"jmcmc.2012070105-9","unstructured":"rd Generation Partnership Project. (2004). 3GPP TS 25.214 V6.3.0: Physical layer procedures (FDD) (Release 6). Sophia-Antipolis, France: Author."},{"key":"jmcmc.2012070105-10","unstructured":"Sawahashi, M., Higuchi, K., & Fujiwara, A. (2001). Multipath interference canceller for high-speed packet transmission with adaptive modulation and coding scheme in W-CDMA forward link. In Proceedings of the IEEE Vehicular Technology Conference (Vol. 3, pp. 2297-2301)."}],"container-title":["International Journal of Mobile Computing and Multimedia Communications"],"original-title":[],"language":"ng","link":[{"URL":"https:\/\/www.igi-global.com\/viewtitle.aspx?TitleId=69534","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,6,2]],"date-time":"2022-06-02T03:12:02Z","timestamp":1654139522000},"score":1,"resource":{"primary":{"URL":"https:\/\/services.igi-global.com\/resolvedoi\/resolve.aspx?doi=10.4018\/jmcmc.2012070105"}},"subtitle":[""],"short-title":[],"issued":{"date-parts":[[2012,7,1]]},"references-count":11,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2012,7]]}},"URL":"https:\/\/doi.org\/10.4018\/jmcmc.2012070105","relation":{},"ISSN":["1937-9412","1937-9404"],"issn-type":[{"value":"1937-9412","type":"print"},{"value":"1937-9404","type":"electronic"}],"subject":[],"published":{"date-parts":[[2012,7,1]]}}}