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| Title: | Cooperative communications based on rateless network coding in distributed MIMO systems |
| Authors: | Li, X.
Jiang, Tao
Cui, Shuguang
An, J.
Zhang, Qian |
| Keywords: | Cellular distributed antenna systems
Cooperative communication schemes
Rateless network coding
Distributed MIMO systems |
| Issue Date: | Jun-2010 |
| Citation: | IEEE wireless communications, v. 17, no. 3, June 2010, p. 60-67 |
| Abstract: | In cellular distributed antenna systems, cooperation among base stations or remote antenna units to exploit multiple-input multiple-output gains could mitigate interference as well as provide more spatial diversity, which could significantly improve overall spectrum efficiency. However, most existing cooperation schemes require perfect synchronization, which is difficult and even impossible in practical distributed multi-user systems. When synchronization is not perfect, cooperative communication performance severely degrades. Orthogonal channel assignment among collaborating stations with rateless network coding allows synchronization to be performed independently, and provides a coding scheme with close-to-capacity performance. In this article we discuss how to construct cooperative communication schemes based on rateless network coding in distributed MIMO systems. Specifically, we propose two cooperation strategies: single-source cooperation based on rateless coding and multisource cooperation based on rateless network coding. The proposed cooperative strategies are applicable to both uplink cooperation among users and downlink cooperation among BSs or RAUs in cellular DASs, providing a parameter-flexible, encodingsimple, and bandwidth-efficient cooperative solution. |
| Rights: | © 2010 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. |
| URI: | http://hdl.handle.net/1783.1/6834 |
| Appears in Collections: | CSE Journal/Magazine Articles
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