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| Title: | Open-loop link adaptation for next-generation IEEE 802.11n wireless networks |
| Authors: | Xia, Qiuyan
Hamdi, Mounir
Letaief, Khaled Ben |
| Keywords: | Link adaptation
Modulation and coding schemes (MCSs)
Multiple-input–multiple-output (MIMO)
Open loop
SDM
STBC
802.11n |
| Issue Date: | Sep-2009 |
| Citation: | IEEE Transactions on Vehicular Technology, vol. 58, no. 7, September 2009, p. 3713-3725 |
| Abstract: | In this paper, we propose a novel open-loop autorate fallback algorithm (i.e., the AutoRate Fallback for High-Throughput (ARFHT) algorithm) for the emerging high-throughput (HT) IEEE 802.11n wireless networks. ARFHT extends the legacy link adaptation algorithms for single-input–single-output (SISO) wireless networks to be applicable in the context of multiple-input–multiple-output (MIMO)-based 802.11n wireless networks. It adapts the MIMO mode in terms of spatial multiplexing and spatial diversity, which are the two fundamental characteristics of MIMO technology. It also modifies the link estimation and probing behavior of legacy SISO algorithms. The combined adaptation to the appropriate MIMO mode and the modulation coding scheme together achieves more efficient channel utilization. We will present in detail the design guidelines and key ideas for the ARFHT algorithm. A comprehensive simulation study using ns-2 demonstrates that ARFHT achieves excellent throughput and packet error-rate performance in diverse environments and is highly responsive to time-varying link conditions with minimum computational complexity and protocol overhead. |
| Rights: | © 2009 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/1783.1/6692 |
| Appears in Collections: | ECE Journal/Magazine Articles
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