KSII Transactions on Internet and Information Systems (TIIS)
- Volume 2 Issue 4
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- Pages.194-208
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- 2008
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- 1976-7277(pISSN)
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- 1976-7277(eISSN)
DOI QR Code
An Algorithm for Iterative Detection and Decoding MIMO-OFDM HARQ with Antenna Scheduling
- Kim, Kyoo-Hyun (The Graduate School of Information Technology & Telecommunications, Inha University) ;
- Kang, Seung-Won (The Graduate School of Information Technology & Telecommunications, Inha University) ;
- Mohaisen, Manar (The Graduate School of Information Technology & Telecommunications, Inha University) ;
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Chang, Kyung-Hi
(The Graduate School of Information Technology & Telecommunications, Inha University)
- Published : 2008.08.25
Abstract
In this paper, a multiple-input-multiple-output (MIMO) hybrid-automatic repeat request (HARQ) algorithm with antenna scheduling is proposed. It retransmits the packet using scheduled transmit antennas according to the state of the communication link, instead of retransmitting the packet via the same antennas. As a result, a combination of conventional HARQ systems, viz. chase combining (CC) and incremental redundancy (IR) are used to achieve better performance and lower redundancy. The proposed MIMO-OFDM HARQ system with antenna scheduling is shown to be superior to conventional MIMO HARQ systems, due to its spatial diversity gain.