A joint power control and interference avoidance code assignment strategy for downlink MC-DS-CDMA with 2D spreading

Chih Wen Chang, Chian Cheng Kuo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Maintaining the quality-of-service (QoS) requirement while eliminating interference is an important but difficult task in the downlink MC-DS-CDMA with two-dimensional (2D) spreading. To achieve this goal, we integrate the power control (FC) mechanism and the interference avoidance code assignment strategy. This joint policy is to firstly eliminate interference via the interference avoidance (IA) code assignment strategy and then maintain the QoS via power control. To facilitate the code assignment strategy, by performance analysis, we define a new PC-based multiple access interference (MAI) coefficient. Thanks to the help of the MAI coefficient, we can evaluate each candidate code by quantitatively predicting the possible interference it may produce. With this interference pre-evaluation, the extra MAI m the system can be avoided. Subsequently, the power control mechanism can maintain the QoS using less power to further eliminate MAI. The simulation results show that the proposed joint scheme can maintain a predefined signal quality and achieve a high code admission rate while reducing the power consumption to 68% in the considered case.

Original languageEnglish
Title of host publication2008 IEEE 67th Vehicular Technology Conference-Spring, VTC
Pages2316-2320
Number of pages5
DOIs
Publication statusPublished - 2008 Jul 28
Event2008 IEEE 67th Vehicular Technology Conference-Spring, VTC - Marina Bay, Singapore
Duration: 2008 May 112008 May 14

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Other

Other2008 IEEE 67th Vehicular Technology Conference-Spring, VTC
CountrySingapore
CityMarina Bay
Period08-05-1108-05-14

Fingerprint

DS-CDMA
Multiple access interference
Power Control
Power control
Code division multiple access
Multiple Access Interference
Assignment
Interference
Quality of service
Quality of Service
Eliminate
Electric power utilization
Coefficient
Power Consumption
Performance Analysis
Strategy
Integrate
Evaluate
Requirements
Evaluation

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this

Chang, C. W., & Kuo, C. C. (2008). A joint power control and interference avoidance code assignment strategy for downlink MC-DS-CDMA with 2D spreading. In 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC (pp. 2316-2320). [4526070] (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VETECS.2008.514
Chang, Chih Wen ; Kuo, Chian Cheng. / A joint power control and interference avoidance code assignment strategy for downlink MC-DS-CDMA with 2D spreading. 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC. 2008. pp. 2316-2320 (IEEE Vehicular Technology Conference).
@inproceedings{b9ddbba3357e4193a3b64147d95e5342,
title = "A joint power control and interference avoidance code assignment strategy for downlink MC-DS-CDMA with 2D spreading",
abstract = "Maintaining the quality-of-service (QoS) requirement while eliminating interference is an important but difficult task in the downlink MC-DS-CDMA with two-dimensional (2D) spreading. To achieve this goal, we integrate the power control (FC) mechanism and the interference avoidance code assignment strategy. This joint policy is to firstly eliminate interference via the interference avoidance (IA) code assignment strategy and then maintain the QoS via power control. To facilitate the code assignment strategy, by performance analysis, we define a new PC-based multiple access interference (MAI) coefficient. Thanks to the help of the MAI coefficient, we can evaluate each candidate code by quantitatively predicting the possible interference it may produce. With this interference pre-evaluation, the extra MAI m the system can be avoided. Subsequently, the power control mechanism can maintain the QoS using less power to further eliminate MAI. The simulation results show that the proposed joint scheme can maintain a predefined signal quality and achieve a high code admission rate while reducing the power consumption to 68{\%} in the considered case.",
author = "Chang, {Chih Wen} and Kuo, {Chian Cheng}",
year = "2008",
month = "7",
day = "28",
doi = "10.1109/VETECS.2008.514",
language = "English",
isbn = "9781424416455",
series = "IEEE Vehicular Technology Conference",
pages = "2316--2320",
booktitle = "2008 IEEE 67th Vehicular Technology Conference-Spring, VTC",

}

Chang, CW & Kuo, CC 2008, A joint power control and interference avoidance code assignment strategy for downlink MC-DS-CDMA with 2D spreading. in 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC., 4526070, IEEE Vehicular Technology Conference, pp. 2316-2320, 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC, Marina Bay, Singapore, 08-05-11. https://doi.org/10.1109/VETECS.2008.514

A joint power control and interference avoidance code assignment strategy for downlink MC-DS-CDMA with 2D spreading. / Chang, Chih Wen; Kuo, Chian Cheng.

2008 IEEE 67th Vehicular Technology Conference-Spring, VTC. 2008. p. 2316-2320 4526070 (IEEE Vehicular Technology Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - A joint power control and interference avoidance code assignment strategy for downlink MC-DS-CDMA with 2D spreading

AU - Chang, Chih Wen

AU - Kuo, Chian Cheng

PY - 2008/7/28

Y1 - 2008/7/28

N2 - Maintaining the quality-of-service (QoS) requirement while eliminating interference is an important but difficult task in the downlink MC-DS-CDMA with two-dimensional (2D) spreading. To achieve this goal, we integrate the power control (FC) mechanism and the interference avoidance code assignment strategy. This joint policy is to firstly eliminate interference via the interference avoidance (IA) code assignment strategy and then maintain the QoS via power control. To facilitate the code assignment strategy, by performance analysis, we define a new PC-based multiple access interference (MAI) coefficient. Thanks to the help of the MAI coefficient, we can evaluate each candidate code by quantitatively predicting the possible interference it may produce. With this interference pre-evaluation, the extra MAI m the system can be avoided. Subsequently, the power control mechanism can maintain the QoS using less power to further eliminate MAI. The simulation results show that the proposed joint scheme can maintain a predefined signal quality and achieve a high code admission rate while reducing the power consumption to 68% in the considered case.

AB - Maintaining the quality-of-service (QoS) requirement while eliminating interference is an important but difficult task in the downlink MC-DS-CDMA with two-dimensional (2D) spreading. To achieve this goal, we integrate the power control (FC) mechanism and the interference avoidance code assignment strategy. This joint policy is to firstly eliminate interference via the interference avoidance (IA) code assignment strategy and then maintain the QoS via power control. To facilitate the code assignment strategy, by performance analysis, we define a new PC-based multiple access interference (MAI) coefficient. Thanks to the help of the MAI coefficient, we can evaluate each candidate code by quantitatively predicting the possible interference it may produce. With this interference pre-evaluation, the extra MAI m the system can be avoided. Subsequently, the power control mechanism can maintain the QoS using less power to further eliminate MAI. The simulation results show that the proposed joint scheme can maintain a predefined signal quality and achieve a high code admission rate while reducing the power consumption to 68% in the considered case.

UR - http://www.scopus.com/inward/record.url?scp=47749088643&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=47749088643&partnerID=8YFLogxK

U2 - 10.1109/VETECS.2008.514

DO - 10.1109/VETECS.2008.514

M3 - Conference contribution

AN - SCOPUS:47749088643

SN - 9781424416455

T3 - IEEE Vehicular Technology Conference

SP - 2316

EP - 2320

BT - 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC

ER -

Chang CW, Kuo CC. A joint power control and interference avoidance code assignment strategy for downlink MC-DS-CDMA with 2D spreading. In 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC. 2008. p. 2316-2320. 4526070. (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VETECS.2008.514