NDLI: A low complexity method of initial ranging for IEEE 802.16e OFDMA systems

Content Provider	IEEE Xplore Digital Library
Author	Yung-Chuan Lin, Szu-Lin Su, Hsin-Chih Wang,
Copyright Year	2009
Description	Author affiliation: Institute of Computer and Communication Engineering, Department of Electrical Engineering, National Cheng Kung University, Tainan City, Taiwan, R.O.C (Yung-Chuan Lin,; Szu-Lin Su,; Hsin-Chih Wang,)
Abstract	Ranging is one of the most important processes in the uplink of the IEEE 802.16e OFDMA system. A ranging process includes initial ranging, periodic ranging, handover ranging, and contention bandwidth request. Initial ranging provides network entry, uplink synchronization, and system coordination. In the initial state of the transmission process, multiple users transmit randomly selected ranging code sets and BS identifies a specific user by using the ranging code identification and uplink synchronization by using the transmission delay estimation. In this paper, we discuss the details of initial ranging and propose an algorithm to carry out a successful ranging process. Performance results and the comparison of computational complexity with the traditional method are also presented. It is observed that the proposed algorithm can offer a better trade-off between computational complexity and performance.
Starting Page	1137
Ending Page	1141
File Size	2437625
Page Count	5
File Format	PDF
ISBN	9788955191387
ISSN	17389445
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-02-15
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Electronics and Telecommunications Research Institute
Subject Keyword	Computational complexity Signal processing Resource management Frequency synchronization Multiaccess communication Delay estimation Interference Authorization Signal detection Delay effects TTD Worldwide Interoperability for Microwave Access(WiMAX) initial ranging ranging code
Content Type	Text
Resource Type	Article

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