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The radial electric field is calculated from the radial component of the force balance equation. It has been shown that three major driving forces have contributed radial electric field including radial pressure gradient, poloidal and toroidal rotation. In this study, we have considered the contribution of these terms, thereby calculating the profiles of plasma parameters by using fluids equations...
Wireless communication system is desired to be bandwidth and power efficient, allow for low complexity transceivers, should be flexible with respect to data rate and provide mitigation against fading. Unlike previous schemes like CDMA and OFDM, a very recent scheme is interleave-division-multiple-access (IDMA) that claims to fulfill all the above requirements. In this paper a multi-user coded and...
This paper presents comparison of vertical layered MIMO MC-CDMA and vertical layered MIMO OFDM system on the basis of bit error rate. Performance analysis is using Rayleigh fading channel and recursive least square algorithm for equalization. Analysis shows that the MC-CDMA system achieves low bit error at lower SNR.
In this paper we use multi-carrier code division multiple access (MC-CDMA) with recursive least square (RLS) equalizer used for channel estimation and equalization then compare it with orthogonal frequency division multiplexing (OFDM). RLS algorithm is used because its converges faster leading to faster and better results compared to other algorithms. Results are received by simulating the transmission...
This paper presented comparison of vertical and horizontal Layered MIMO OFDM system. The results are simulated in both Rayleigh and AWGN channels. In this paper, vertical and horizontal Layered MIMO OFDM system is simulated for two and three number of transmit and receive antennas and their performance is analyzed in terms of bit error rate (BER). We evaluate that the performance of turbo coded vertical...
This paper proposes a simple and efficient method for channel equalization of MIMO-OFDM system with channel estimation. Channel equalization of multiple inputs multiple outputs orthogonal frequency division multiplexing (MIMO-OFDM) for Rayleigh fading and AWGN channel is simulated. Temporal variations in channel are due to the Doppler spread, a sign of relative motion between transmitter and receiver...
This paper presents coded and uncoded vertical and horizontal layered structure for MIMO OFDM system. A turbo encoder is used for encoding and MAP algorithm is used for decoding. The results are simulated in both Rayleigh and AWGN channels. In this paper, coded and uncoded vertical and horizontal layered MIMO OFDM system is compared and their performance is analyzed in terms of bit error rate (BER)...
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