A novel multiple access scheme for mobile communications systems

This paper presents a novel multiple access scheme for future mobile communications using Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA) and Code Division Multiple Access (CDMA). The proposed system can support different classes of users each with different data rates and can provide very high spectral and system efficiency for the uplink and downlink. It is able to meet the demands on flexibility in data rate and provides scalability with respect to bandwidth using variable time slots, spreading factors and number of subcarriers. It exploits the advantages given by the combination of the spread spectrum technique with multicarrier modulation as well as TDMA.

[1]  S. Suwa,et al.  Performance comparison between MC/DS-CDMA and MC-CDMA for reverse link broadband packet wireless access , 2002, Proceedings IEEE 56th Vehicular Technology Conference.

[2]  Masao Nakagawa,et al.  Performance of orthogonal multicarrier CDMA in a multipath fading channel , 1994, IEEE Trans. Commun..

[3]  G. Giannakis,et al.  Wireless Multicarrier Communications where Fourier Meets , 2022 .

[4]  Kawamura Teruo,et al.  Performance of Frequency Domain Equalizer for Variable Spreading and Chip Repetition Factors (VSCRF)-CDMA in Reverse Link Broadband Packet Wireless Access , 2004 .

[5]  Khaled Fazel,et al.  Multi-Carrier and Spread Spectrum Systems , 2003 .

[6]  S. Weinstein,et al.  Data Transmission by Frequency-Division Multiplexing Using the Discrete Fourier Transform , 1971 .

[7]  Ramjee Prasad,et al.  Design and performance of multicarrier CDMA system in frequency-selective Rayleigh fading channels , 1999 .

[8]  K. Fazel.  Performance of CDMA/OFDM for mobile communication system , 1993, Proceedings of 2nd IEEE International Conference on Universal Personal Communications.

[9]  Theodore S. Rappaport,et al.  Wireless communications - principles and practice , 1996 .

[10]  Ramjee Prasad,et al.  OFDM for Wireless Multimedia Communications , 1999 .

[11]  John G. Proakis,et al.  Digital Communications , 1983 .

[12]  Marc Moeneclaey,et al.  Extending the capacity of multiple access channels , 2000 .

[13]  J. Ludden,et al.  Principles and Practice , 1998, Community-based Learning and Social Movements.

[14]  Americo Brajal,et al.  Orthogonal multicarrier techniques applied to direct sequence spread spectrum CDMA systems , 1993, Proceedings of GLOBECOM '93. IEEE Global Telecommunications Conference.

[15]  Jean-Paul M. G. Linnartz,et al.  Multi-Carrier Cdma In Indoor Wireless Radio Networks , 1994 .

[16]  R. Chang,et al.  A Theoretical Study of Performance of an Orthogonal Multiplexing Data Transmission Scheme , 1968 .

[17]  Georgios B. Giannakis,et al.  Wireless multicarrier communications , 2000, IEEE Signal Process. Mag..

[18]  Ramjee Prasad,et al.  Overview of multicarrier CDMA , 1997, IEEE Commun. Mag..