NDLI: Adaptive Channel Estimation and Data Detection for Discontinuous Transmission in TD-SCDMA Systems

Content Provider	IEEE Xplore Digital Library
Author	Peng Xue Jae Hyun Park Eun Heon Kim Duk Kyung Kim Jae Hwang Yu Dong Hahk Lee Ra Mi Lee
Copyright Year	2007
Description	Author affiliation: Dept. of Inf. & Commun. Eng., Inha Univ., Inchon (Peng Xue; Jae Hyun Park; Eun Heon Kim; Duk Kyung Kim)
Abstract	In the TD-SCDMA (time division synchronous code division multiple access) system, joint channel estimation (JCE) and joint detection (JD) take into account all users' signals, and effectively estimate the channel impulse responses (CIRs) and detect the data symbols for all active users, respectively. If the discontinuous transmission (DTX) is employed in the system, both JCE and JD may process the active and non-active users' signals together, but with high complexity and low accuracy. In this paper, adaptive JCE and JD are proposed to process only the active users' signals with lower complexity, based on the known activity information from signaling. The simulation results show that adaptive JCE improves the channel estimation performance, and the combination of adaptive JCE and JD yields better system performance compared with conventional methods.
Starting Page	720
Ending Page	724
File Size	256165
Page Count	5
File Format	PDF
ISBN	1424402662
ISSN	15502252
DOI	10.1109/VETECS.2007.158
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-04-22
Publisher Place	Ireland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Channel estimation Time division synchronous code division multiple access Downlink System performance Signal processing Multiaccess communication Time division multiple access Physical layer Mobile communication Data engineering
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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