Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Carl R. Nassar"'
Autor:
Carl R. Nassar, Zhiqiang Wu
Publikováno v:
IEEE Transactions on Wireless Communications. 4:1491-1505
Orthogonal frequency-division multiplexing (OFDM) has gained a great deal of attention lately and is considered as a strong candidate for many next-generation wireless communication systems. However, OFDM (in its current implementation) does not demo
High-Throughput High-Performance TDMA Through Pseudo-Orthogonal Carrier Interferometry Pulse Shaping
Publikováno v:
IEEE Transactions on Wireless Communications. 3:689-694
This letter provides a novel method for doubling throughput in time division multiple access (TDMA) systems. Specifically, with pseudo-orthogonal positioning of carrier interferometry pulse shapes, a TDMA system is designed to support twice as many r
Publikováno v:
IEEE Wireless Communications. 11:64-71
C-N2-N- Company 2 bandwidth ABSTRACT In this article we propose a new multicarrier platform to optimize the efficiency of wireless operators' licensed hands and enable flexible shar- ing of licensed and unlicensed hands (in different spectral regions
Publikováno v:
IEEE Transactions on Communications. 52:362-367
In traditional binary frequency-shift keying (BFSK), two distinct carrier frequencies are used to represent binary data. In this letter, we propose transmitting multiple orthogonal, in-phase subcarriers around two distinct carrier frequencies to repr
Publikováno v:
IEEE Transactions on Communications. 52:110-119
In this paper, a novel merger of multicarrier code-division multiple access (MC-CDMA) and smart antenna arrays is introduced. Here, a group of Q carriers in the MC-CDMA system is applied to its own M-element smart antenna array at the base station (B
Autor:
Carl R. Nassar, Hassan Zamat
Publikováno v:
Journal of Communications and Networks. 4:1-7
This work summarizes the current state of the art in software radio for 4G systems. Specifically, this work demonstrates that classic radio structures, e.g., heterodyne reception, homodyne reception, and their improved implementations, are inadequate
Autor:
Seyed A. Zekavat, Carl R. Nassar
Publikováno v:
IEEE Transactions on Communications. 50:1549-1556
By applying carefully selected time-varying delays to the array elements of a smart antenna located at the base station (BS), small oscillations are generated in the beam pattern. These oscillations create a time-varying channel demonstrating intra-s
Publikováno v:
IEEE Transactions on Vehicular Technology. 51:1030-1039
We introduce a novel merger of smart antenna arrays and multicarrier code-division multiple-access (MC-CDMA) systems. Here, each group of Q carriers in the MC-CDMA system is applied to its own M-element smart antenna at the base station (BS). The sma
Publikováno v:
Wireless Communications and Mobile Computing. 2:381-403
Multi-carrier technologies in general, and OFDM and MC-CDMA in particular, are an integral part of the wireless landscape. In this second part of a two-part survey, the authors present an innovative set of spreading codes known as CI codes, and demon
Publikováno v:
Wireless Communications and Mobile Computing. 2:357-379
Multi-carrier technologies in general, and OFDM and MC-CDMA in particular, are quickly becoming an integral part of the wireless landscape. In this first of a two-part survey, the authors present the innovative transmit/receive multi-carrier implemen