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Various Optimization Techniques Performance Testing for OFDM System Design
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 142 - Number 3 |
| Year of Publication: 2016 |
| Authors: Deeksha Dimri, Samreen Eram |
10.5120/ijca2016909704
|
Deeksha Dimri, Samreen Eram . Various Optimization Techniques Performance Testing for OFDM System Design. International Journal of Computer Applications. 142, 3 ( May 2016), 1-5. DOI=10.5120/ijca2016909704
Abstract
The telecommunications’ industry is in the hub of an absolute detonation in wireless technologies. Once absolutely military, cellular and satellite technologies are now commercially motivated by ever more challenging consumers, who are prepared for seamless communication from their household to their car, to their workplace, or even for outside activities. With this augmented demand originates a growing essential to transmit info wirelessly, quickly, and precisely. To state this need, communications engineer have collective technologies appropriate for high rate transmission by means of forward error correction FEC techniques. The latter are chiefly important as wireless communications channels WCC are far more antagonistic as opposed to wire replacements, and the need for flexibility proves especially stimulating for reliable communications. On the whole, Orthogonal Frequency Division Multiplexing also known as OFDM is the standard being used during the course of the world to achieve the high data tariffs necessary for data concentrated applications that must now turn out to be routine. This thesis improves the throughput of a present OFDM system by employing adaptive modulation and OFDM coding. The new system assurances to reach a target performance bit error rate BER of 10-2 over a slow time-varying disappearing channel. The system automatically changes from lower to higher modulation arrangements on individual subcarriers, reliant on the state of the quasi-stationary channel.
References
- John.G. Proakis, Digital communications, 5th edition, McGraw-Hill, New York, 2000.
- J.-J. van de Beek et al “ML estimation of timing and frequency offset in multicarrier systems” Research Report TIJLEA Luleå. University of Technology, 1996.
- Timothy M. Schmidl et al “Robust Frequency and Timing Synchronization for OFDM” IEEE Transactions on Communications, No. 12, December 1997.
- Ye (Geoffrey) Li et al “Robust Channel Estimation for OFDM Systems with Rapid Dispersive Fading Channels” IEEE Transactions on Communications, Vol. 46, No. 7, July 1998.
- Michael Speth et al “Optimum Receiver Design for Wireless Broad-Band Systems Using OFDM” IEEE Transactions on Communications, Vol. 47 November 1999.
- Chan Kyu Kim et al “Performance of Wireless MC-CDMA Antenna Array in a Fading Channel” IEEE Transaction on Communications, No.8, August 2000.
- Seong Taek Chung et al “Degrees of Freedom in Modulation unified View” IEEE Transactions Communications, September 2001.
- Severine Catreux et al “Adaptive Modulation for Broadband Wireless Networks” IEEE Communication Magazine, June 2002.
- Song Ni et al “On the Networking Performance of UTRA TDD and FDD CDMA Systems Using Modulation and Adaptive Beam-forming” IEEE Conference August 2003.
- Shengli Zhou et al “Adaptive Modulation for Multi-antenna with Channel Mean Feedback” IEEE Transaction no Communications, No.5, September 2004.
- Pengfei Xia et al “Multi-antenna Adaptive Modulation with Beam-forming Based on Bandwidth Constrained Feedback” IEEE Transaction on Communications Vol. 53, No.3, March 2005.
- Hüseyin Arslan et al “Cognitive UWB-OFDM: Pushing Ultra-wideband Beyond Its Limit via Opportunistic Spectrum Usage” Journal of Communications and Networks, Vol. 8, No. 2, June 2006.
- Yu Zhang et al “MIMO-OFDM Systems in the Presence of Phase Noise and Doubly Selective Fading” IEEE Transactions on Vehicular Technology, Vol. 56, No. 4, July 2007.
- Lei Lei et al “Flow-level Performance of Opportunistic OFDM-TDMA and OFDMA Networks” IEEE Transactions on Wireless Communications, Vol. 7, No. 12, December 2008.
- Hany Elgala et al “Indoor Broadcasting via White LEDs and OFDM” IEEE Transactions on Communications, Vol. 8, No. 19, June 2009.
- Alan Barbieri et al “OFDM versus Single-Carrier Transmission for 100 Gbps Optical Communication” Journal of Light-wave Technology, Vol. 28, No. 17, September 1, 2010.
- A. Omri et al “New Transmission Scheme For MIMO-OFDM System” International Journal of Next-Generation Networks (IJNGN) Vol.3, No.1, March 2011.
- Ludwig, Frank et al “FPGA Implementation of ZF-THP for MU-MISO-OFDM Systems” OFDM 2012, 17th International OFDM Workshop 2012.
- Murtuza Jeeranwala et al “Implementation of OFDM based Transreciever for IEEE 802.11a on FPGA” IJARCSSE 2014.
- Hema Thota et al “Performance analysis of OFDM for 4G wireless systems under various fading channels” IJIREEICE 2015.
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