摘要
为降低球译码算法复杂度,采用概率计算的方法,推导出多入多出(MIMO)系统的一种改进的复数域球译码算法.比较了采用经典复数域球译码算法和采用改进的复数域球译码算法的性能与复杂度.仿真结果表明,高信噪比条件下,改进算法的复杂度与发送天线数的2次方成正比.
To reduce the complexity of the sphere-decoding algorithm, a modified sphere-decoding algorithm in the complex domain based on probability computation was proposed for multiple input and multiple output （MIMO）system. The performance and the complexity of the modified algorithm were compared with those of the classical sphere-decoding algorithm through simulation. With a high signal-to-noise ratio, the complexity of the modified algorithm is only a quadratic polynomial of the number of the transmit antennas.
出处
《天津大学学报》
EI
CAS
CSCD
北大核心
2009年第4期368-372,共5页
Journal of Tianjin University(Science and Technology)
基金
国家自然科学基金资助项目(90604035)
关键词
MIMO
球译码
算法复杂度
multiple input and multiple output （MIMO）
sphere-decoding
algorithm complexity
