TIIS (한국인터넷정보학회)
Current Result Document :
| 한글제목(Korean Title) |
Sub-channel Allocation Based on Multi-level Priority in OFDMA Systems |
| 영문제목(English Title) |
Sub-channel Allocation Based on Multi-level Priority in OFDMA Systems |
| 저자(Author) |
JongChan Lee
MoonHo Lee
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| 원문수록처(Citation) |
VOL 07 NO. 08 PP. 1876 ~ 1889 (2013. 08) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
Packet-based mobile multimedia services for the Internet differ with respect to their resource requirements, performance objectives, and resource usage efficiencies. Nonetheless, each mobile terminal should support a variety of multimedia services, sometimes even simultaneously. This paper proposes a sub-channel allocation scheme based on multi-level priority for supporting mobile multimedia services in an Orthogonal Frequency Division Multiple Access (OFDMA) system. We attempt to optimize the system for satisfying the Quality of Service (QoS) requirements of users and maximize the capacity of the system at the same time. In order to achieve this goal, the proposed scheme considers the Signal-to-Interference-plus-Noise Ratio (SINR) of co-sub-channels in adjacent cells, the Signal-to-Noise Ratio (SNR) grade of each sub-channel in the local cell on a per-user basis, and the characteristics of the individual services before allocating sub-channels. We used a simulation to evaluate our scheme with the performance measure of the outage probabilities, delays, and throughput.
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| 키워드(Keyword) |
OFDMA
Sub-channel Allocation
QoS
SNR/SINR
Priority Index
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| 파일첨부 |
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