Design and performance of an OFDM-CPM receiver for wireless communications

7th International Multi Topic Conference, 2003. INMIC 2003. Pub Date : 2003-12-08 DOI:10.1109/INMIC.2003.1416663

M.A. Tasadduq, R. Rao

引用次数: 3

Abstract

A new class of orthogonal frequency division multiplexing-continuous phase modulation (OFDM-CPM) signals has been introduced recently that outperforms conventional OFDM-PSK signals. These signals employ multi symbol observations for detection of data. An optimum OFDM-CPM receiver was designed that observed n symbols of the received waveform, and arrived at an optimum estimate of the data transmitted in the first symbol interval. However, from the viewpoint of receiver complexity, this receiver is quite complex and the complexity grows exponentially as a function of number of observation symbols. Thus, in this paper, we develop and investigate a less complex OFDM-CPM receiver that employs post-FFT signal processing for recovery of data. Performance of this receiver is evaluated over multipath fading channels for several subclasses of OFDM-CPM signals. It is shown that we achieve error rate performance that is far superior to the performance offered by conventional OFDM-PSK systems

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无线通信OFDM-CPM接收机的设计与性能

近年来，人们提出了一种新的正交频分复用-连续相位调制(OFDM-CPM)信号，其性能优于传统的OFDM-PSK信号。这些信号采用多符号观测来检测数据。设计了一种最优OFDM-CPM接收机，该接收机观测到接收波形的n个符号，并在第一个符号间隔内得到传输数据的最优估计。然而，从接收机复杂性的角度来看，该接收机是相当复杂的，其复杂性作为观测符号数量的函数呈指数增长。因此，在本文中，我们开发和研究了一种不太复杂的OFDM-CPM接收机，该接收机采用后fft信号处理来恢复数据。在多径衰落信道中对OFDM-CPM信号的几个子类进行了性能评估。实验结果表明，该系统的误码率性能远远优于传统的OFDM-PSK系统

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

7th International Multi Topic Conference, 2003. INMIC 2003.

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