计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2015年
8期
85-88,147
,共5页
衰落信道%选择合并%正交信号%双正交信号%误符号率
衰落信道%選擇閤併%正交信號%雙正交信號%誤符號率
쇠락신도%선택합병%정교신호%쌍정교신호%오부호솔
fading channel%selective combining%orthogonal signals%biorthogonal signals%symbol error rate
推导了Nakagami衰落信道上采用联合发收天线选择和相干检测的M进制正交（双正交）信号的精确或近似平均误符号率/误比特率解析表达式。数值计算和模拟结果验证了M进制正交信号平均误符号率/误比特率近似表达式的准确性，同时阐明了Nakagami衰落系数和发收天线数对采用联合发收天线选择的M进制正交（双正交）信号平均误符号率/误比特率性能的影响。数值计算和模拟结果还表明：当收发天线总数固定时，收发两端天线数量分配越均匀，M进制正交（双正交）信号的误码性能越好。
推導瞭Nakagami衰落信道上採用聯閤髮收天線選擇和相榦檢測的M進製正交（雙正交）信號的精確或近似平均誤符號率/誤比特率解析錶達式。數值計算和模擬結果驗證瞭M進製正交信號平均誤符號率/誤比特率近似錶達式的準確性，同時闡明瞭Nakagami衰落繫數和髮收天線數對採用聯閤髮收天線選擇的M進製正交（雙正交）信號平均誤符號率/誤比特率性能的影響。數值計算和模擬結果還錶明：噹收髮天線總數固定時，收髮兩耑天線數量分配越均勻，M進製正交（雙正交）信號的誤碼性能越好。
추도료Nakagami쇠락신도상채용연합발수천선선택화상간검측적M진제정교（쌍정교）신호적정학혹근사평균오부호솔/오비특솔해석표체식。수치계산화모의결과험증료M진제정교신호평균오부호솔/오비특솔근사표체식적준학성，동시천명료Nakagami쇠락계수화발수천선수대채용연합발수천선선택적M진제정교（쌍정교）신호평균오부호솔/오비특솔성능적영향。수치계산화모의결과환표명：당수발천선총수고정시，수발량단천선수량분배월균균，M진제정교（쌍정교）신호적오마성능월호。
The exact and approximate closed-form expressions for the average Symbol Error Rate(SER)and average Bit Error Rate(BER) of coherent M-ary orthogonal/biorthogonal signals over Nakagami fading channels with joint single Transmit Antenna Selection and Receive Antenna Selection(TAS/RAS)are derived in this paper. Numerical and simulation results verify the accuracy of the approximate solution and illustrate the effect of Nakagami fading coefficient and antenna configurations on the average SER and BER of TAS/RAS systems. Numerical and simulation results also show that better error performance of M-ary orthogonal/biorthogonal signals can be achieved by evenly distributing antennas between the receiver and transmitter with a fixed total number of transmit and receive antenna antennas.
