In the case of quadrature amplitude modulation (QAM), the bit boundary lines are predetermined by a minimum distance in the constellation space for a specified M-ary modulation, so that, the soft metric equations are only a function of the received signal value for providing efficient computation...
M-QAM modulationNakagami-m fadingChannel adaptive M-ary quadrature amplitude modulation (M-QAM) schemes have been developed to provide higher average link spectral efficiency by taking advantage of the time-varying nature of wireless fading channels. Much of the earlier work on such schemes uses ...
By using the moment-generating function-based analysis approach, the average Bit Error Rates(BER) for Multiresolution M-ary Quadrature Amplitude Modulation(MR-MQAM) in Multiple Input Multiple Output(MIMO) Nakagami fading channels is described. 使用矩生成函数方法分别推导了Nakagami衰落信道上多分辨率M进...
MQAM (M-ary Quadrature Amplitude Modulation) is the most effective digitalmodulation technique as it is more power efficient for larger values of M. The basic idea of M-ary QAM OFDM has been discussed in the paper. The Simulink based model of the MQAM-OFDM system with normal AWGN channel ...
In this paper, we first investigate the average spectral efficiency (ASE) of M-ary quadrature amplitude modulation (M-QAM) satisfying instantaneous bit error rate constraint for DPS/DPB CoMP system with 3 different adaptive modulation strategies. Closed-form expressions of the ASE for continuous-...
This paper presents performance analysis of dual-polarized M-ary Quadrature Amplitude Modulated (QAM) signals over nondispersive radio channels. In particular, dual-polarized, 16-QAM signals are examined. A simple method for adaptive cancellation of static and fade-induced cross-polarization interference...
1.算法仿真效果 matlab2022a仿真结果如下: 2.算法涉及理论知识概要 随着通信技术的飞速发展,高阶调制格式如16QAM(16-Quadrature Amplitude Modulation,16进制正交幅度调制)在高速数据传输中得到了广泛应用。…
A rate-distortion optimized wireless video streaming algorithm was developed which considers the allocation of multiple quadrature amplitude modulation(M-QAM) sub-channels,the number of scalable video layers,and the channel coding protection priorities for various layers. 在满足信道传输速率的约束条件下,...
We assume that each user employs spectrally efficient M-ary quadrature amplitude modulation and undergoes independent Rayleigh fading. We study the performance of linear minimum mean-squared error receivers in situations where: i) the channels of all users are known perfectly; ii) the receiver knows...
M-Ary Phase Shift Keying M-ary Phase-Shift Keying M-Ary Quadrature Amplitude Modulation M-Ary Quadrature Partial Response M-Ary-Input/Non-Symmetric-Output M-Ary-Input/Symmetric-Output M-ASA M-ASC m-atm M-ATV M-B m-BACOD m-banking ...