Abstract
In the adaptive modulation and coding (AMC)-based orthogonal frequency division multiple access (OFDMA) system for broad-band wireless service, a large number of users with short packets cause a serious capacity mismatch problem, which incurs resource under-utilization when the data rate of subchannel increases with a better channel condition. To handle the capacity mismatch problem, we propose an AMC-based subchannel multiplexing (ASM) scheme, which allows for sharing the same subchannel among the different simultaneous flows of the same user. Along with the ASM scheme, we also consider multi-class scheduling scheme, which employs the different packet scheduling algorithm for the different service class, e.g., packet loss rate-based (PLR) scheduling algorithm for real-time (RT) service and modified minimum bit rate-based (MMBR) scheduling algorithm for non-real-time (NRT) service. In the typical integrated service scenario with voice, video, and data traffic, we have shown that the proposed schemes significantly improve the overall system capacity.
| Original language | English |
|---|---|
| Pages (from-to) | 2810-2818 |
| Number of pages | 9 |
| Journal | IEICE Transactions on Communications |
| Volume | E88-B |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2005 Jul 1 |
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Keywords
- AMC
- AMC-based subchannel multiplexing
- Multi-class service
- OFDMA system
- Packet scheduling
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Computer Networks and Communications
Cite this
Subchannel multiplexing scheme for mobile broadband wireless access services in AMC-based OFDMA system. / Kim, Dong Hoi; Kang, Chung Gu.
In: IEICE Transactions on Communications, Vol. E88-B, No. 7, 01.07.2005, p. 2810-2818.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Subchannel multiplexing scheme for mobile broadband wireless access services in AMC-based OFDMA system
AU - Kim, Dong Hoi
AU - Kang, Chung Gu
PY - 2005/7/1
Y1 - 2005/7/1
N2 - In the adaptive modulation and coding (AMC)-based orthogonal frequency division multiple access (OFDMA) system for broad-band wireless service, a large number of users with short packets cause a serious capacity mismatch problem, which incurs resource under-utilization when the data rate of subchannel increases with a better channel condition. To handle the capacity mismatch problem, we propose an AMC-based subchannel multiplexing (ASM) scheme, which allows for sharing the same subchannel among the different simultaneous flows of the same user. Along with the ASM scheme, we also consider multi-class scheduling scheme, which employs the different packet scheduling algorithm for the different service class, e.g., packet loss rate-based (PLR) scheduling algorithm for real-time (RT) service and modified minimum bit rate-based (MMBR) scheduling algorithm for non-real-time (NRT) service. In the typical integrated service scenario with voice, video, and data traffic, we have shown that the proposed schemes significantly improve the overall system capacity.
AB - In the adaptive modulation and coding (AMC)-based orthogonal frequency division multiple access (OFDMA) system for broad-band wireless service, a large number of users with short packets cause a serious capacity mismatch problem, which incurs resource under-utilization when the data rate of subchannel increases with a better channel condition. To handle the capacity mismatch problem, we propose an AMC-based subchannel multiplexing (ASM) scheme, which allows for sharing the same subchannel among the different simultaneous flows of the same user. Along with the ASM scheme, we also consider multi-class scheduling scheme, which employs the different packet scheduling algorithm for the different service class, e.g., packet loss rate-based (PLR) scheduling algorithm for real-time (RT) service and modified minimum bit rate-based (MMBR) scheduling algorithm for non-real-time (NRT) service. In the typical integrated service scenario with voice, video, and data traffic, we have shown that the proposed schemes significantly improve the overall system capacity.
KW - AMC
KW - AMC-based subchannel multiplexing
KW - Multi-class service
KW - OFDMA system
KW - Packet scheduling
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U2 - 10.1093/ietcom/e88-b.7.2810
DO - 10.1093/ietcom/e88-b.7.2810
M3 - Article
VL - E88-B
SP - 2810
EP - 2818
JO - IEICE Transactions on Communications
JF - IEICE Transactions on Communications
SN - 0916-8516
IS - 7
ER -