Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Bhaskar A"'
Publikováno v:
International Journal of Wireless Information Networks. 22:285-293
The goal of fourth generation (4G) mobile communications system is to seamlessly integrate a wide variety of communication services such as high speed data, video and multimedia traffic as well as voice signals. One of the promising approaches in 4G
Autor:
Uma Raj, Vidhyacharan Bhaskar
Publikováno v:
International Journal of Wireless Information Networks. 22:147-156
High performance of MIMO-OFDM wireless systems is very much desirable. In this paper, we study the performance analysis of scheduling schemes for multiuser MIMO-OFDM systems employing Orthogonal Space-Frequency Block Coding in η–µ fading scenario
Autor:
J. K. Thejeswi, Vidhyacharan Bhaskar
Publikováno v:
International Journal of Wireless Information Networks. 20:81-94
In this paper, a simplified expression for Improved Gaussian Approximation is considered to model multiple access interference in an A-CDMA system. Punctured convolutional codes, which are one of the subclasses of convolutional codes, are employed to
Autor:
Vidhyacharan Bhaskar, Chen Jie
Publikováno v:
International Journal of Wireless Information Networks. 15:53-60
This paper analyzes the distribution and density functions of the probability of error for Rayleigh and Rician fading channels with diversity. An expression for the signal-to-noise ratio is derived for an asynchronous CDMA (A-CDMA) system with divers
Autor:
Vidhyacharan Bhaskar
Publikováno v:
International Journal of Wireless Information Networks. 14:191-203
In this paper, closed-form expressions for the capacities per unit bandwidth for Generalized Rayleigh fading channels are derived for optimal power adaptation, constant transmit power, channel inversion with fixed rate, and truncated channel inversio
Autor:
Vidhyacharan Bhaskar
Publikováno v:
International Journal of Wireless Information Networks. 14:209-223
In this paper, closed-form expressions for the capacities per unit bandwidth for generalized Rician fading channels are derived for power and rate adaptation, constant transmit power, channel inversion with fixed rate, and truncated channel inversion
Autor:
Vidhyacharan Bhaskar
Publikováno v:
International Journal of Wireless Information Networks. 13:229-237
In this paper, the performance of punctured convolutional codes of short constraint lengths is discussed. The punctured codes are used to provide error protection to a particular user in an asynchronous CDMA system. A perfect phase reference is assum
Autor:
Vidhyacharan Bhaskar
Publikováno v:
International Journal of Wireless Information Networks. 12:159-168
In this paper, a detailed theoretical analysis of fading margin in an asynchronous code division multiple access (A-CDMA) system is discussed. Rayleigh and Rician frequency-selective slowly fading channels are considered. Probability distribution and