Abstract
We present an analytical model of throughput-delay tradeoff of the proportional fair scheduling of OFDMA Systems in context of user multiplexing. For this purpose, we propose simple and efficient resource allocation schemes which are based on 2-dimensional resource partitioning in frequency and time domain. Basically, frequency-domain partitioning is determined by degree of frequency diversity and time-domain partitioning is determined by degree of multiplexing which is number of users to be served in a sub-channel of a frame. Our approach is aimed at maximizing the delay constrained throughput by choosing the appropriate degree of multiplexing for a given degree of frequency diversity. We investigate the effect of degree-of-multiplexing and frequency diversity on delay QoS performance of OFDMA system by analyzing the effective capacity, and then develop an approach to finding the optimal degree of multiplexing by the asymptotic approximation.
| Original language | English |
|---|---|
| Title of host publication | 2010 16th Asia-Pacific Conference on Communications, APCC 2010 |
| Pages | 255-260 |
| Number of pages | 6 |
| DOIs | |
| Publication status | Published - 2010 Dec 1 |
| Event | 2010 16th Asia-Pacific Conference on Communications, APCC 2010 - Auckland, New Zealand Duration: 2010 Oct 31 → 2010 Nov 3 |
Other
| Other | 2010 16th Asia-Pacific Conference on Communications, APCC 2010 |
|---|---|
| Country | New Zealand |
| City | Auckland |
| Period | 10/10/31 → 10/11/3 |
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All Science Journal Classification (ASJC) codes
- Computer Networks and Communications
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Analysis of proportional fair scheduling in OFDMA systems with delay QoS constraints. / Ahn, Seongwoo; Lee, Seokwon; Kim, Kyungho; Hong, Daesik.
2010 16th Asia-Pacific Conference on Communications, APCC 2010. 2010. p. 255-260 5679776.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Analysis of proportional fair scheduling in OFDMA systems with delay QoS constraints
AU - Ahn, Seongwoo
AU - Lee, Seokwon
AU - Kim, Kyungho
AU - Hong, Daesik
PY - 2010/12/1
Y1 - 2010/12/1
N2 - We present an analytical model of throughput-delay tradeoff of the proportional fair scheduling of OFDMA Systems in context of user multiplexing. For this purpose, we propose simple and efficient resource allocation schemes which are based on 2-dimensional resource partitioning in frequency and time domain. Basically, frequency-domain partitioning is determined by degree of frequency diversity and time-domain partitioning is determined by degree of multiplexing which is number of users to be served in a sub-channel of a frame. Our approach is aimed at maximizing the delay constrained throughput by choosing the appropriate degree of multiplexing for a given degree of frequency diversity. We investigate the effect of degree-of-multiplexing and frequency diversity on delay QoS performance of OFDMA system by analyzing the effective capacity, and then develop an approach to finding the optimal degree of multiplexing by the asymptotic approximation.
AB - We present an analytical model of throughput-delay tradeoff of the proportional fair scheduling of OFDMA Systems in context of user multiplexing. For this purpose, we propose simple and efficient resource allocation schemes which are based on 2-dimensional resource partitioning in frequency and time domain. Basically, frequency-domain partitioning is determined by degree of frequency diversity and time-domain partitioning is determined by degree of multiplexing which is number of users to be served in a sub-channel of a frame. Our approach is aimed at maximizing the delay constrained throughput by choosing the appropriate degree of multiplexing for a given degree of frequency diversity. We investigate the effect of degree-of-multiplexing and frequency diversity on delay QoS performance of OFDMA system by analyzing the effective capacity, and then develop an approach to finding the optimal degree of multiplexing by the asymptotic approximation.
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U2 - 10.1109/APCC.2010.5679776
DO - 10.1109/APCC.2010.5679776
M3 - Conference contribution
SN - 9781424481293
SP - 255
EP - 260
BT - 2010 16th Asia-Pacific Conference on Communications, APCC 2010
ER -