Single-Carrier Hybrid ARQ Using Joint Transmit/Receive MMSE-FDE

9 years 7 months ago
Single-Carrier Hybrid ARQ Using Joint Transmit/Receive MMSE-FDE
—In the next generation high-speed wireless packet access systems, hybrid automatic repeat request (HARQ) is necessary to achieve higher throughput performance. An HARQ with Chase combining (CC) transmits the same coded packet until it is correctly received. The received packets are combined to achieve the time-diversity gain. Recently, we proposed a joint transmit/receive frequency-domain equalization (FDE) based on the minimum mean square error (MMSE) criterion for a broadband single-carrier (SC) signal transmission in a frequency-selective channel. In this paper, we consider SCHARQ using joint transmit/receive MMSE-FDE and derive a suboptimal set of transmit and receive FDE weights for packet combining. We show by computer simulation that the joint transmit/receive MMSE-FDE offers improved throughput compared to the conventional receive MMSE-FDE. Keywords-component; Frequency-domain equalization, packet combining, HARQ
Kazuki Takeda, Fumiyuki Adachi
Added 31 Jan 2011
Updated 31 Jan 2011
Type Journal
Year 2010
Where VTC
Authors Kazuki Takeda, Fumiyuki Adachi
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