Mark, J.O. and Samir, B.B. and Naufal, M. (2011) Spectral efficiency for MIMO orthogonal MC DS-CDMA system over Nakagami-m fading channels. In: UNSPECIFIED.
Full text not available from this repository.Abstract
Multiple Input Multiple Output (MIMO) systems have appeared as one of the promising approaches for increasing the capacity and lowering symbol or bit error probability of the wireless communication systems without increasing the bandwidth or the transmission power of the system. In this paper, we investigate the average channel capacity for MIMO orthogonal multicarrier direct Sequence Code Division Multiple Access (OMC DS-CDMA) system in Nakagami-m fading environment. We also consider the influence of the normalized space between two adjacent subcarriers of the system in average channel capacity analysis. Gaussian approximation method is employed to model multiuser interference (MUI) which mostly degrades the system performance. Hence, probability density function (PDF) of the instantaneous signal to interference noise ratio (SINR) is derived using Characteristic Function (CF) based method. Therefore, the exact closed form expression for the average channel capacity is derived by taking the expectation of Shannon channel capacity over the PDF of SINR. The results reveal that the average channel capacity of the MIMO OMC DS-CDMA system outperforms that of the conventional OMC DS-CDMA system. Similarly, we observe that MIMO MC DS-CDMA system has better spectral efficiency. Thus, we confirm the numerical results using Monte Carlo simulation technique. © 2011 IEEE.
Item Type: | Conference or Workshop Item (UNSPECIFIED) |
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Additional Information: | cited By 0; Conference of 2011 IEEE Conference on Sustainable Utilization Development in Engineering and Technology, STUDENT 2011 ; Conference Date: 20 October 2011 Through 21 October 2011; Conference Code:87821 |
Uncontrolled Keywords: | Bit error probability; Capacity analysis; Characteristic functions; Closed-form expression; DS-CDMA; DS-CDMA system; Gaussian approximation method; Gaussian approximations; MC-CDMA; MC-DS-CDMA; Monte carlo simulation technique; Multi-user interference; Multicarrier direct sequence code-division multiple access; Multiple-input-multiple-output systems; Nakagami-m fading; Nakagami-m fading channels; Numerical results; Probability density function (pdf); Shannon channel capacity; Signal to interference-noise ratios; Space between; Spectral efficiencies; Sub-carriers; Transmission power; Wireless communication system, Approximation theory; Bandwidth; Bit error rate; Californium; Channel capacity; Communication channels (information theory); Communication systems; Computer simulation; Fading channels; Global system for mobile communications; MIMO systems; Monte Carlo methods; Probability density function; Signal interference; Spectrum analyzers; Spurious signal noise; Turbo codes; Wireless telecommunication systems, Code division multiple access |
Depositing User: | Mr Ahmad Suhairi UTP |
Date Deposited: | 09 Nov 2023 15:49 |
Last Modified: | 09 Nov 2023 15:49 |
URI: | https://khub.utp.edu.my/scholars/id/eprint/1434 |