Low complexity dynamic channel allocation by efficient swapping process for OFDMA systems

Woohyun Seo; Myeon Gyun Cho; Daesik Hong

doi:10.1109/VETECF.2005.1558094

Low complexity dynamic channel allocation by efficient swapping process for OFDMA systems

Woohyun Seo, Myeon Gyun Cho, Daesik Hong

Department of Electrical and Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this paper, the low complexity algorithm of dynamic channel allocation (DCA) for downlink OFDMA systems is proposed. From the complexity calculation of Wong's algorithm composed of two steps, it is known that the major complexity burden of this algorithm is occurred by initial step. By this reason, initial step of the simplified allocation algorithm is made from a random allocation without any complexity. In addition, the number of iterations for a swapping process in the second step is limited efficiently using the limitation factor. Simulation results show that the bit-error-rate (BER) performance of the proposed algorithm is close to that of Wong's even if is has the decreased complexity by more than two times.

Original language	English
Title of host publication	VTC 2005-Fall
Subtitle of host publication	Mid Way Through the Decade - Technology Past, Present and Future
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1089-1092
Number of pages	4
ISBN (Electronic)	0780391527
DOIs	https://doi.org/10.1109/VETECF.2005.1558094
Publication status	Published - 2005 Jan 1
Event	62nd Vehicular Technology Conference, VTC 2005 - Dallas, United States Duration: 2005 Sept 25 → 2005 Sept 28

Publication series

Name	IEEE Vehicular Technology Conference
Volume	2
ISSN (Print)	1550-2252

Other

Other	62nd Vehicular Technology Conference, VTC 2005
Country/Territory	United States
City	Dallas
Period	05/9/25 → 05/9/28

All Science Journal Classification (ASJC) codes

Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

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10.1109/VETECF.2005.1558094

Cite this

Seo, W., Cho, M. G., & Hong, D. (2005). Low complexity dynamic channel allocation by efficient swapping process for OFDMA systems. In VTC 2005-Fall: Mid Way Through the Decade - Technology Past, Present and Future (pp. 1089-1092). Article 1558094 (IEEE Vehicular Technology Conference; Vol. 2). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VETECF.2005.1558094

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title = "Low complexity dynamic channel allocation by efficient swapping process for OFDMA systems",

abstract = "In this paper, the low complexity algorithm of dynamic channel allocation (DCA) for downlink OFDMA systems is proposed. From the complexity calculation of Wong's algorithm composed of two steps, it is known that the major complexity burden of this algorithm is occurred by initial step. By this reason, initial step of the simplified allocation algorithm is made from a random allocation without any complexity. In addition, the number of iterations for a swapping process in the second step is limited efficiently using the limitation factor. Simulation results show that the bit-error-rate (BER) performance of the proposed algorithm is close to that of Wong's even if is has the decreased complexity by more than two times.",

author = "Woohyun Seo and Cho, {Myeon Gyun} and Daesik Hong",

year = "2005",

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doi = "10.1109/VETECF.2005.1558094",

language = "English",

series = "IEEE Vehicular Technology Conference",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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Seo, W, Cho, MG & Hong, D 2005, Low complexity dynamic channel allocation by efficient swapping process for OFDMA systems. in VTC 2005-Fall: Mid Way Through the Decade - Technology Past, Present and Future., 1558094, IEEE Vehicular Technology Conference, vol. 2, Institute of Electrical and Electronics Engineers Inc., pp. 1089-1092, 62nd Vehicular Technology Conference, VTC 2005, Dallas, United States, 05/9/25. https://doi.org/10.1109/VETECF.2005.1558094

Low complexity dynamic channel allocation by efficient swapping process for OFDMA systems. / Seo, Woohyun; Cho, Myeon Gyun; Hong, Daesik.
VTC 2005-Fall: Mid Way Through the Decade - Technology Past, Present and Future. Institute of Electrical and Electronics Engineers Inc., 2005. p. 1089-1092 1558094 (IEEE Vehicular Technology Conference; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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T1 - Low complexity dynamic channel allocation by efficient swapping process for OFDMA systems

AU - Seo, Woohyun

AU - Cho, Myeon Gyun

AU - Hong, Daesik

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N2 - In this paper, the low complexity algorithm of dynamic channel allocation (DCA) for downlink OFDMA systems is proposed. From the complexity calculation of Wong's algorithm composed of two steps, it is known that the major complexity burden of this algorithm is occurred by initial step. By this reason, initial step of the simplified allocation algorithm is made from a random allocation without any complexity. In addition, the number of iterations for a swapping process in the second step is limited efficiently using the limitation factor. Simulation results show that the bit-error-rate (BER) performance of the proposed algorithm is close to that of Wong's even if is has the decreased complexity by more than two times.

AB - In this paper, the low complexity algorithm of dynamic channel allocation (DCA) for downlink OFDMA systems is proposed. From the complexity calculation of Wong's algorithm composed of two steps, it is known that the major complexity burden of this algorithm is occurred by initial step. By this reason, initial step of the simplified allocation algorithm is made from a random allocation without any complexity. In addition, the number of iterations for a swapping process in the second step is limited efficiently using the limitation factor. Simulation results show that the bit-error-rate (BER) performance of the proposed algorithm is close to that of Wong's even if is has the decreased complexity by more than two times.

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T2 - 62nd Vehicular Technology Conference, VTC 2005

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Low complexity dynamic channel allocation by efficient swapping process for OFDMA systems

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