Earticle

초록

영어

SORTD (Space Orthogonal-Resource Transmit Diversity) has already become a better way of transmit diversity for PUCCH format 3 in LTE-A [1]. SORTD technology lies in the characteristic that each antenna port transmits signal by using different cyclic shift [2] to make orthogonal each other. Using the SORTD’s feature of incoherence in different antennas, this paper proposes a special form of signal model. Based on this proposed model, we propose a low complexity channel estimator based on LS and cubic spline interpolation, and then we put a LS and DCT algorithm to improve the interpolation performance. Finally, for more accurate estimator we drive the third approach based on MMSE and DCT. A series of theoretical researches and simulation results show that all of them are suitable for the proposed signal model even in the environment of high-speed movement; especially the algorithms with DCT have a better performance.

목차

Abstract
 1. Introduction
 2. System Model
  2.1. The Generation of DMRS
  2.2. Signal Model
 3. Channel Estimation Model
  3.1. The Channel Estimator based on LS and Cubic Spline Interpolation
  3.2. The Channel Estimation Approach based on LS and DCT
  3.3. The Channel Estimating Approach based on MMSE and DCT
 4. Simulations and Analyses
  4.1. Simulation Environment
  4.2. The Analysis of Simulation Result
 5. Conclusion
 Acknowledgement
 References

키워드

저자

• Xiaoping Zeng [ School of Communication Engineering, Chongqing University, China ]
• Ya Wen [ Ya Wen, | School of Communication Engineering, Chongqing University, China ]
• Zhiming Wang [ School of Communication Engineering, Chongqing University, China ]
• Yuemei Jin [ School of Communication Engineering, Chongqing University, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Smart Home

• 간기

  격월간

• pISSN

  1975-4094

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605