{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T14:42:51Z","timestamp":1753886571178,"version":"3.41.2"},"reference-count":17,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2010,10,13]],"date-time":"2010-10-13T00:00:00Z","timestamp":1286928000000},"content-version":"vor","delay-in-days":285,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"funder":[{"DOI":"10.13039\/501100001659","name":"German Research Foundation","doi-asserted-by":"crossref","award":["HO 2226\/8-1","HO 2226\/10-1"],"award-info":[{"award-number":["HO 2226\/8-1","HO 2226\/10-1"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100001659","name":"German Research Foundation","doi-asserted-by":"crossref","award":["HO 2226\/8-1","HO 2226\/10-1"],"award-info":[{"award-number":["HO 2226\/8-1","HO 2226\/10-1"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Electrical and Computer Engineering"],"published-print":{"date-parts":[[2010,1]]},"abstract":"<jats:p>For single\u2010carrier transmission over delay\u2010spread multi\u2010input multi\u2010output (MIMO) channels, the computational complexity of the receiver is often considered as a bottleneck with respect to (w.r.t.) practical implementations. Multi\u2010antenna interference (MAI) together with intersymbol interference (ISI)\nprovides fundamental challenges for efficient and reliable data detection. In this paper, we carry out a systematic study on the interference structure of MIMO\u2010ISI channels, and sequentially deduce three different Gaussian approximations to simplify the calculation of the global likelihood function. Using factor graphs\nas a general framework and applying the Gaussian approximation, three low\u2010complexity iterative detection algorithms are derived, and their performances are compared by means of Monte Carlo simulations. After a careful inspection of their merits and demerits, we propose a graph\u2010based iterative Gaussian\ndetector (GIGD) for severely delay\u2010spread MIMO channels. The GIGD is characterized by a strictly linear computational complexity w.r.t. the effective channel memory length, the number of transmit antennas, and the number of receive antennas. When the channel has a sparse ISI structure, the complexity of the\nGIGD is strictly proportional to the number of nonzero channel taps. Finally, the GIGD provides a near\u2010optimum performance in terms of the bit error rate (BER) for repetition encoded MIMO systems.<\/jats:p>","DOI":"10.1155\/2010\/609509","type":"journal-article","created":{"date-parts":[[2010,10,13]],"date-time":"2010-10-13T20:10:26Z","timestamp":1287000626000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Low\u2010Complexity Gaussian Detection for MIMO Systems"],"prefix":"10.1155","volume":"2010","author":[{"given":"Tianbin","family":"Wo","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter Adam","family":"Hoeher","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2010,10,13]]},"reference":[{"key":"e_1_2_12_1_2","doi-asserted-by":"publisher","DOI":"10.1109\/TIT.1972.1054829"},{"key":"e_1_2_12_2_2","doi-asserted-by":"publisher","DOI":"10.1109\/TCOM.1974.1092267"},{"key":"e_1_2_12_3_2","doi-asserted-by":"publisher","DOI":"10.1109\/TIT.1974.1055186"},{"key":"e_1_2_12_4_2","doi-asserted-by":"publisher","DOI":"10.1007\/b99321"},{"key":"e_1_2_12_5_2","doi-asserted-by":"publisher","DOI":"10.1109\/26.774855"},{"key":"e_1_2_12_6_2","doi-asserted-by":"publisher","DOI":"10.1109\/TSP.2003.822376"},{"key":"e_1_2_12_7_2","doi-asserted-by":"publisher","DOI":"10.1109\/LCOMM.2005.11018"},{"key":"e_1_2_12_8_2","doi-asserted-by":"crossref","unstructured":"YuanX. WuK. andPingL. The jointly Gaussian approach to iterative detection in MIMO systems Proceedings of the IEEE International Conference on Communications (ICC \u203206) September 2006 Istanbul Turkey.","DOI":"10.1109\/ICC.2006.255252"},{"key":"e_1_2_12_9_2","doi-asserted-by":"publisher","DOI":"10.1109\/TCOMM.2006.878829"},{"key":"e_1_2_12_10_2","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2007.05911"},{"key":"e_1_2_12_11_2","doi-asserted-by":"publisher","DOI":"10.1109\/26.659484"},{"key":"e_1_2_12_12_2","doi-asserted-by":"publisher","DOI":"10.1109\/18.910572"},{"key":"e_1_2_12_13_2","doi-asserted-by":"publisher","DOI":"10.1109\/MSP.2004.1267047"},{"key":"e_1_2_12_14_2","doi-asserted-by":"crossref","unstructured":"WoT.andHoeherP. A. A simple iterative Gaussian detector for severely delay-spread MIMO channels Proceedings of the IEEE International Conference on Communications (ICC \u203207) June 2007 Glasgow Scotland 24\u201328.","DOI":"10.1109\/ICC.2007.759"},{"key":"e_1_2_12_15_2","doi-asserted-by":"crossref","unstructured":"WoT. FrickeJ. C. andHoeherP. A. A graph-based iterative Gaussian detector for frequency-selective MIMO channels Proceedings of the IEEE Information Theory Workshop (ITW \u203206) October 2006 Chengdu China.","DOI":"10.1109\/ITW2.2006.323701"},{"key":"e_1_2_12_16_2","doi-asserted-by":"publisher","DOI":"10.1155\/WCN.2005.796"},{"key":"e_1_2_12_17_2","doi-asserted-by":"crossref","unstructured":"WoT. wtb@tf.uni-kiel.de LiuC. andliu@ti.rwth-aachen.de HoeherP. A. ph@tf.uni-kiel.de Graph-based soft channel and data estimation for MIMO systems with asymmetric LDPC codes Proceedings of the IEEE International Conference on Communications (ICC \u203208) May 2008 Beijing China 620\u2013624 https:\/\/doi.org\/10.1109\/ICC.2008.122.","DOI":"10.1109\/ICC.2008.122"}],"container-title":["Journal of Electrical and Computer Engineering"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/jece\/2010\/609509.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/jece\/2010\/609509.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1155\/2010\/609509","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,6,19]],"date-time":"2024-06-19T10:24:57Z","timestamp":1718792697000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1155\/2010\/609509"}},"subtitle":[],"editor":[{"given":"Christian","family":"Schlegel","sequence":"additional","affiliation":[],"role":[{"role":"editor","vocabulary":"crossref"}]}],"short-title":[],"issued":{"date-parts":[[2010,1]]},"references-count":17,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2010,1]]}},"alternative-id":["10.1155\/2010\/609509"],"URL":"https:\/\/doi.org\/10.1155\/2010\/609509","archive":["Portico"],"relation":{},"ISSN":["2090-0147","2090-0155"],"issn-type":[{"type":"print","value":"2090-0147"},{"type":"electronic","value":"2090-0155"}],"subject":[],"published":{"date-parts":[[2010,1]]},"assertion":[{"value":"2010-03-13","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2010-08-30","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2010-10-13","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"609509"}}