SHERP

A Framework Design for the Next-Generation Radio Access System

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Authors
Moon, June; Ko, Jae-Yun; Lee, Yong-Hwan
Issue Date
2006-03
Publisher
Institute of Electrical and Electronics Engineers
Citation
IEEE Journal on Selected Areas in Communications, vol. 24, no. 3, pp. 554-564, March 2006
Keywords
Air-interfaceorthogonal frequency-division multiplexing (OFDM) systemseamless operation
Abstract
Extensive use of the Internet and huge demands for multimedia services via portable devices require the development of packet-based radio access systems with high transmission efficiency. Advanced radio transmission technologies have recently
been proposed to achieve this challenging task. However, few researches have been reported on the design of an integrated system that can efficiently exploit the advantages of these transmission
technologies. This paper considers the design of a packet-based cellular system for next-generation radio access. We propose a novel system framework that can incorporate various advanced transmission technologies such as link adaptation, opportunistic packet
scheduling, channel coding, and multiantenna techniques. For efficient use of these technologies together, we first investigate the interoperability between these technologies by proposing a so-called
cause and effect analysis. Based on this investigation, we design a differentiated-segments-based orthogonal frequency-division multiplexing system, called DiffSeg, to accommodate heterogeneous operating conditions in a seamless manner. Simulation results show that the proposed DiffSeg system can provide a nearly optimum
performance with flexible configuration in a wide range of wireless channel conditions.
ISSN
0733-8716
Language
English
URI
http://hdl.handle.net/10371/6740
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Journal Papers (저널논문_전기·정보공학부)
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