On the economic aspects of downlink scheduling in DS-CDMA systems: Base-station density perspective

Seong Lyun Kim; Hyun Mi Baek

doi:10.1109/TVT.2006.878602

On the economic aspects of downlink scheduling in DS-CDMA systems: Base-station density perspective

Seong Lyun Kim, Hyun Mi Baek

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Wireless systems have evolved into supporting nonreal-time data services. However, as the data rates for the services increase, the number of base stations per service area needs to expand, which leads to a high degree of base-station density. On the other hand, the so-called best effort resource management has been extensively studied for nonreal-time data services. One example of such efforts can be found in packet scheduling. The purpose of this paper is to investigate the economic impact of the downlink scheduling in terms of the base-station density. To this end, equations that can calculate the base-station density for the given quality of service (QoS) requirements such as outage probabilities, average data rates, and target E_b/I_o were derived. Under specific QoS requirements on Rayleigh-fading channel environments, it is found that the one-by-one downlink scheduling (round-robin) requires about 50%-60% of the base stations required by the conventional simultaneous transmission. It was also found that this impact is almost the same as simply doubling the spectrum bandwidth for the simultaneous transmission. The base-station density is directly related to the infrastructure cost and thus may be translated into service prices. Therefore, the analysis in this paper provides a new insight into an economic aspect; how much the service prices for downloading the nonreal-time data would decrease with the introduction of packet scheduling in the code division multiple access downlink.

Original language	English
Pages (from-to)	1594-1602
Number of pages	9
Journal	IEEE Transactions on Vehicular Technology
Volume	55
Issue number	5
DOIs	https://doi.org/10.1109/TVT.2006.878602
Publication status	Published - 2006 Sept

Bibliographical note

Funding Information:
Manuscript received December 5, 2003; revised February 9, 2005, September 15, 2005, and November 24, 2005. This work was supported by the BrOMA-ITRC, Ministry of Information and Communication, Korea. The review of this paper was coordinated by Prof. C.-J. Chang. S.-L. Kim is with the Radio Resource Management and Optimization Laboratory, School of Electrical and Electronic Engineering, Yonsei University, Seoul 120-749, Korea (e-mail: slkim@yonsei.ac.kr). H.-M. Baek is with the IT Services Research Division, Electronics and Telecommunications Research Institute, Daejon 305-350, Korea (e-mail: lotus@etri.re.kr). Color versions of Figs. 3–10 are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TVT.2006.878602

All Science Journal Classification (ASJC) codes

Automotive Engineering
Aerospace Engineering
Electrical and Electronic Engineering
Applied Mathematics

Access to Document

10.1109/TVT.2006.878602

Cite this

@article{f53d26f5219e49c9909db54d55ede03d,

title = "On the economic aspects of downlink scheduling in DS-CDMA systems: Base-station density perspective",

abstract = "Wireless systems have evolved into supporting nonreal-time data services. However, as the data rates for the services increase, the number of base stations per service area needs to expand, which leads to a high degree of base-station density. On the other hand, the so-called best effort resource management has been extensively studied for nonreal-time data services. One example of such efforts can be found in packet scheduling. The purpose of this paper is to investigate the economic impact of the downlink scheduling in terms of the base-station density. To this end, equations that can calculate the base-station density for the given quality of service (QoS) requirements such as outage probabilities, average data rates, and target Eb/Io were derived. Under specific QoS requirements on Rayleigh-fading channel environments, it is found that the one-by-one downlink scheduling (round-robin) requires about 50%-60% of the base stations required by the conventional simultaneous transmission. It was also found that this impact is almost the same as simply doubling the spectrum bandwidth for the simultaneous transmission. The base-station density is directly related to the infrastructure cost and thus may be translated into service prices. Therefore, the analysis in this paper provides a new insight into an economic aspect; how much the service prices for downloading the nonreal-time data would decrease with the introduction of packet scheduling in the code division multiple access downlink.",

author = "Kim, {Seong Lyun} and Baek, {Hyun Mi}",

note = "Funding Information: Manuscript received December 5, 2003; revised February 9, 2005, September 15, 2005, and November 24, 2005. This work was supported by the BrOMA-ITRC, Ministry of Information and Communication, Korea. The review of this paper was coordinated by Prof. C.-J. Chang. S.-L. Kim is with the Radio Resource Management and Optimization Laboratory, School of Electrical and Electronic Engineering, Yonsei University, Seoul 120-749, Korea (e-mail: slkim@yonsei.ac.kr). H.-M. Baek is with the IT Services Research Division, Electronics and Telecommunications Research Institute, Daejon 305-350, Korea (e-mail: lotus@etri.re.kr). Color versions of Figs. 3–10 are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TVT.2006.878602",

year = "2006",

month = sep,

doi = "10.1109/TVT.2006.878602",

language = "English",

volume = "55",

pages = "1594--1602",

journal = "IEEE Transactions on Vehicular Communications",

issn = "0018-9545",

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

number = "5",

}

TY - JOUR

T1 - On the economic aspects of downlink scheduling in DS-CDMA systems

T2 - Base-station density perspective

AU - Kim, Seong Lyun

AU - Baek, Hyun Mi

N1 - Funding Information: Manuscript received December 5, 2003; revised February 9, 2005, September 15, 2005, and November 24, 2005. This work was supported by the BrOMA-ITRC, Ministry of Information and Communication, Korea. The review of this paper was coordinated by Prof. C.-J. Chang. S.-L. Kim is with the Radio Resource Management and Optimization Laboratory, School of Electrical and Electronic Engineering, Yonsei University, Seoul 120-749, Korea (e-mail: slkim@yonsei.ac.kr). H.-M. Baek is with the IT Services Research Division, Electronics and Telecommunications Research Institute, Daejon 305-350, Korea (e-mail: lotus@etri.re.kr). Color versions of Figs. 3–10 are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TVT.2006.878602

PY - 2006/9

Y1 - 2006/9

N2 - Wireless systems have evolved into supporting nonreal-time data services. However, as the data rates for the services increase, the number of base stations per service area needs to expand, which leads to a high degree of base-station density. On the other hand, the so-called best effort resource management has been extensively studied for nonreal-time data services. One example of such efforts can be found in packet scheduling. The purpose of this paper is to investigate the economic impact of the downlink scheduling in terms of the base-station density. To this end, equations that can calculate the base-station density for the given quality of service (QoS) requirements such as outage probabilities, average data rates, and target Eb/Io were derived. Under specific QoS requirements on Rayleigh-fading channel environments, it is found that the one-by-one downlink scheduling (round-robin) requires about 50%-60% of the base stations required by the conventional simultaneous transmission. It was also found that this impact is almost the same as simply doubling the spectrum bandwidth for the simultaneous transmission. The base-station density is directly related to the infrastructure cost and thus may be translated into service prices. Therefore, the analysis in this paper provides a new insight into an economic aspect; how much the service prices for downloading the nonreal-time data would decrease with the introduction of packet scheduling in the code division multiple access downlink.

AB - Wireless systems have evolved into supporting nonreal-time data services. However, as the data rates for the services increase, the number of base stations per service area needs to expand, which leads to a high degree of base-station density. On the other hand, the so-called best effort resource management has been extensively studied for nonreal-time data services. One example of such efforts can be found in packet scheduling. The purpose of this paper is to investigate the economic impact of the downlink scheduling in terms of the base-station density. To this end, equations that can calculate the base-station density for the given quality of service (QoS) requirements such as outage probabilities, average data rates, and target Eb/Io were derived. Under specific QoS requirements on Rayleigh-fading channel environments, it is found that the one-by-one downlink scheduling (round-robin) requires about 50%-60% of the base stations required by the conventional simultaneous transmission. It was also found that this impact is almost the same as simply doubling the spectrum bandwidth for the simultaneous transmission. The base-station density is directly related to the infrastructure cost and thus may be translated into service prices. Therefore, the analysis in this paper provides a new insight into an economic aspect; how much the service prices for downloading the nonreal-time data would decrease with the introduction of packet scheduling in the code division multiple access downlink.

UR - http://www.scopus.com/inward/record.url?scp=33749355341&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33749355341&partnerID=8YFLogxK

U2 - 10.1109/TVT.2006.878602

DO - 10.1109/TVT.2006.878602

M3 - Article

AN - SCOPUS:33749355341

SN - 0018-9545

VL - 55

SP - 1594

EP - 1602

JO - IEEE Transactions on Vehicular Communications

JF - IEEE Transactions on Vehicular Communications

IS - 5

ER -

On the economic aspects of downlink scheduling in DS-CDMA systems: Base-station density perspective

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this