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Performance of Single User vs. Multiuser Modulation in Wireless\n Multicarrier (MC) Communications

2013/05/31 by Anwarul Azim, Azim, Anwarul
Computer Science · Engineering · Mathematics · #Acoustics #Advanced Wireless Communication Techniques #Advanced Wireless Network Optimization #Algorithm #Bit error rate #Block (permutation group theory) #CDMA spectral efficiency #Channel (broadcasting) #Code division multiple access #Computer science #Electronic engineering #Engineering #FOS: Computer and information sciences #Fading #Fast Fourier transform #Information Theory (cs.IT) #Mathematics #Modulation (music) #Multiuser detection #PAPR reduction in OFDM #Physics #Spread spectrum #Telecommunications #Transmission (telecommunications) #Wireless Communication Networks Research #cs.IT #math.IT

paper · pdf · doi:10.48550/arxiv.1305.7393

published in arXiv (Cornell University) (Cornell University)

arxiv created 2013/05/31 · openalex publication_date 2013/05/31 · arxiv updated 2013/06/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The main objective of this paper is to compare block transmission system\nperformance analytically for Code Divisional Multiple Access (CDMA) modulations\nin Generalized Multicarrier environment against linear modulation techniques\nfor both single user and multiuser. The effectivity of GMC-CDMA for multiuser\nwill also be judged for different Direct Sequence CDMA (DS-CDMA) such as\nMC-CDMA, MC-DS-CDMA, MC-SS-CDMA. The analytical comparison will be in terms of\ncomputing probability of bit error for frequency selective and slow flat fading\nchannels for different modulation techniques. The Bit Error Rate should be a\ngood indication for of the performance. The tolerance characteristics of\nDS-CDMA in frequency-selective channels and MC-CDMA in flat fading channels\nwill be shown analytically and improved capacity and Bit Error Rate performance\nwill be derived for Block Spread Multiuser Multicarrier by relying block symbol\nspreading and Fast Fourier Transform (FFT) operations. GMC-CDMA should give\nguaranteed symbol recovery regardless of channel limitations.\n

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