Earticle

초록

영어

In this paper, we introduce the partial channel state information based on sub-carrier allocation (PCSI-SA) scheme in order to improve the performance in multi-carrier transmission techniques such as Orthogonal Frequency Division Multiplexing Access (OFDMA). To obtain an optimum resource allocation, we require accurate channel state information (CSI). However, in practical resource allocation systems, it is hard to estimate the accurate channel state information because the environment of a wireless communication channel is always changing. To solve this problem, we proposed the resource allocation scheme using partial channel state information (PCSI) feedback data from the receiver. Moreover, the proposed sys- tem improves the fairness among the users, as well as the BER performance. We evaluate the performance of the proposed scheme using computer simulations. The results show that the proposed system provides superior performance compared to that of conventional systems in term of BER performance and fairness.

목차

Abstract
 1. Introduction
 2. Channel Model
 3. OFDMA System Description
 4. Proposed sub-carrier Assignment Algorithm Description
 5. Simulation and Result
 6. Conclusion
 Acknowledgements
 References

키워드

저자

• Kyujin Lee [ Semyung University, 579 Sinwoul-dong, Jecheon-City, Chungbuk, 390-711, Republic of Korea ]
• Keehwan Kim [ Semyung University, 579 Sinwoul-dong, Jecheon-City, Chungbuk, 390-711, Republic of Korea ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Software Engineering and Its Applications

• 간기

  월간

• pISSN

  1738-9984

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605