Performance Analysis of Space-Frequency Coding in MIMO Cognitive Radios
In this paper, a cognitive MIMO system with space-frequency coding is proposed, in which the cognitive link communicates using two transmission antennas and one receiving antenna. Cognitive MIMO systems allow the licensed spectrum to be opportunistically exploited by the cognitive user, so they enable public access to the underutilized spectral bands and therefore the overall spectral efficiency can be economically increased. While in some situations, such as high-mobility environment or channel fading rapidly, it may be difficult and costly to estimate the channel accurately for cognitive MIMO systems. To solve the problem, space-frequency coding scheme has been proposed for cognitive MIMO systems. The construction of SF codes for the cognitive MIMO system is provided.
MIMO cognitive radios SF coding
Xin Duan Yang Xiao Shujuan Shang Moon Ho Lee
Institute of Information Science, Beijing Jiaotong University, Beijing 100044, China Division of Electronics and Information Engineering, Chonbuk National University, Jeonju 561-756, Ko
国际会议
北京
英文
177-181
2011-11-27（万方平台首次上网日期，不代表论文的发表时间）