Channel asymmetry due to cell deployment and service in OFDMA/TDD systems

Jisu Kim; Chan Byoung Chae; Sunghyun Cho; Jae Hyun Kim

doi:10.1145/1968613.1968724

Channel asymmetry due to cell deployment and service in OFDMA/TDD systems

Jisu Kim, Chan Byoung Chae, Sunghyun Cho, Jae Hyun Kim

School of Integrated Technology

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

2 Citations (Scopus)

Abstract

This paper studies the channel asymmetric characteristic between a downlink and an uplink channel in orthogonal frequency division multiple access (OFDMA)/time division duplexing (TDD) systems. To investigate the downlink and uplink channel asymmetry, we derive a propagation loss model and a shadowing model taking into consideration geometrical information and inter-cell interference. Then, the channel asymmetric cases are introduced based on the proposed channel models. Numerical results show that the causes of the uplink and downlink channel asymmetry are mainly due to the coverage of neighbor cells and the usage ratio of uplink and downlink traffic. As coverage of neighbor cells increases, an uplink signal to interference and noise ratio (SINR) becomes lower than that of a downlink SINR. In addition, as uplink traffic of mobile stations (MSs) increases, an uplink SINR decreases. increases.

Original language	English
Title of host publication	Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication, ICUIMC 2011
DOIs	https://doi.org/10.1145/1968613.1968724
Publication status	Published - 2011
Event	5th International Conference on Ubiquitous Information Management and Communication, ICUIMC 2011 - Seoul, Korea, Republic of Duration: 2011 Feb 21 → 2011 Feb 23

Publication series

Name	Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication, ICUIMC 2011

Other

Other	5th International Conference on Ubiquitous Information Management and Communication, ICUIMC 2011
Country/Territory	Korea, Republic of
City	Seoul
Period	11/2/21 → 11/2/23

Bibliographical note

Funding Information:
Preparation of this contribution and the authors’ research reported herein were supported by Grant HD 05331 from the National Institute of Child Health and Human Development. We thank Dr. Joanne L. Miller for her helpful critical com-

All Science Journal Classification (ASJC) codes

Computer Networks and Communications
Information Systems

Access to Document

10.1145/1968613.1968724

Cite this

Kim, J., Chae, C. B., Cho, S., & Kim, J. H. (2011). Channel asymmetry due to cell deployment and service in OFDMA/TDD systems. In Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication, ICUIMC 2011 [94] (Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication, ICUIMC 2011). https://doi.org/10.1145/1968613.1968724

Kim, Jisu ; Chae, Chan Byoung ; Cho, Sunghyun et al. / Channel asymmetry due to cell deployment and service in OFDMA/TDD systems. Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication, ICUIMC 2011. 2011. (Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication, ICUIMC 2011).

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title = "Channel asymmetry due to cell deployment and service in OFDMA/TDD systems",

abstract = "This paper studies the channel asymmetric characteristic between a downlink and an uplink channel in orthogonal frequency division multiple access (OFDMA)/time division duplexing (TDD) systems. To investigate the downlink and uplink channel asymmetry, we derive a propagation loss model and a shadowing model taking into consideration geometrical information and inter-cell interference. Then, the channel asymmetric cases are introduced based on the proposed channel models. Numerical results show that the causes of the uplink and downlink channel asymmetry are mainly due to the coverage of neighbor cells and the usage ratio of uplink and downlink traffic. As coverage of neighbor cells increases, an uplink signal to interference and noise ratio (SINR) becomes lower than that of a downlink SINR. In addition, as uplink traffic of mobile stations (MSs) increases, an uplink SINR decreases. increases.",

author = "Jisu Kim and Chae, {Chan Byoung} and Sunghyun Cho and Kim, {Jae Hyun}",

note = "Funding Information: Preparation of this contribution and the authors{\textquoteright} research reported herein were supported by Grant HD 05331 from the National Institute of Child Health and Human Development. We thank Dr. Joanne L. Miller for her helpful critical com-; 5th International Conference on Ubiquitous Information Management and Communication, ICUIMC 2011 ; Conference date: 21-02-2011 Through 23-02-2011",

year = "2011",

doi = "10.1145/1968613.1968724",

language = "English",

isbn = "9781450305716",

series = "Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication, ICUIMC 2011",

booktitle = "Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication, ICUIMC 2011",

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Kim, J, Chae, CB, Cho, S & Kim, JH 2011, Channel asymmetry due to cell deployment and service in OFDMA/TDD systems. in Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication, ICUIMC 2011., 94, Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication, ICUIMC 2011, 5th International Conference on Ubiquitous Information Management and Communication, ICUIMC 2011, Seoul, Korea, Republic of, 11/2/21. https://doi.org/10.1145/1968613.1968724

Channel asymmetry due to cell deployment and service in OFDMA/TDD systems. / Kim, Jisu; Chae, Chan Byoung; Cho, Sunghyun et al.
Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication, ICUIMC 2011. 2011. 94 (Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication, ICUIMC 2011).

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

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T1 - Channel asymmetry due to cell deployment and service in OFDMA/TDD systems

AU - Kim, Jisu

AU - Chae, Chan Byoung

AU - Cho, Sunghyun

AU - Kim, Jae Hyun

N1 - Funding Information: Preparation of this contribution and the authors’ research reported herein were supported by Grant HD 05331 from the National Institute of Child Health and Human Development. We thank Dr. Joanne L. Miller for her helpful critical com-

PY - 2011

Y1 - 2011

N2 - This paper studies the channel asymmetric characteristic between a downlink and an uplink channel in orthogonal frequency division multiple access (OFDMA)/time division duplexing (TDD) systems. To investigate the downlink and uplink channel asymmetry, we derive a propagation loss model and a shadowing model taking into consideration geometrical information and inter-cell interference. Then, the channel asymmetric cases are introduced based on the proposed channel models. Numerical results show that the causes of the uplink and downlink channel asymmetry are mainly due to the coverage of neighbor cells and the usage ratio of uplink and downlink traffic. As coverage of neighbor cells increases, an uplink signal to interference and noise ratio (SINR) becomes lower than that of a downlink SINR. In addition, as uplink traffic of mobile stations (MSs) increases, an uplink SINR decreases. increases.

AB - This paper studies the channel asymmetric characteristic between a downlink and an uplink channel in orthogonal frequency division multiple access (OFDMA)/time division duplexing (TDD) systems. To investigate the downlink and uplink channel asymmetry, we derive a propagation loss model and a shadowing model taking into consideration geometrical information and inter-cell interference. Then, the channel asymmetric cases are introduced based on the proposed channel models. Numerical results show that the causes of the uplink and downlink channel asymmetry are mainly due to the coverage of neighbor cells and the usage ratio of uplink and downlink traffic. As coverage of neighbor cells increases, an uplink signal to interference and noise ratio (SINR) becomes lower than that of a downlink SINR. In addition, as uplink traffic of mobile stations (MSs) increases, an uplink SINR decreases. increases.

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Kim J, Chae CB, Cho S, Kim JH. Channel asymmetry due to cell deployment and service in OFDMA/TDD systems. In Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication, ICUIMC 2011. 2011. 94. (Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication, ICUIMC 2011). doi: 10.1145/1968613.1968724

Channel asymmetry due to cell deployment and service in OFDMA/TDD systems

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