Mayank Soni | LNCT , Indore(India) (original) (raw)

Mayank Soni

Address: Ujjain, MP, India

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Research paper thumbnail of RADON TRANSFORM BASED OFDM-IDMA SYSTEM WITH AWGN CHANNEL

This paper presents a model which is Finite Radon Transform based Orthogonal Frequency Division M... more This paper presents a model which is Finite Radon Transform based Orthogonal Frequency Division Multiplexing-Interleaver Division Multiple Access (OFDM-IDMA) system for next generation wireless communication system. FRAT is the underlying fundamental concept used for computerized tomography scanning, as well for a wide range of other disciplines, including radar imaging, Geophysical imaging, nondestructive testing and medical imaging. Recently Finite Radon Transform (FRAT) was proposed as a mapping technique in OFDM system Conventional OFDM/QAM systems are robust for multi-path channels due to the cyclically prefixed guard interval which is inserted between consequent symbols to Remove ISI. An interleaver-based multiple access schemes have also been studied in for high spectral efficiency, improved performance and low receiver complexity. This scheme relies on interleaving as the only means to distinguish the signals from different users, and hence it has been called interleave-division multiple-access (IDMA). From the simulation results the FRAT-OFDM-IDMA system performs better as compared to DFT-OFDM-IDMA and DWT-OFDM-IDMA system in term of BER performance for next generation wireless communication system. OFDM is a digital modulation scheme in which a wideband signal is split into a number of narrowband signals. Because the symbol duration of a narrowband signal will be large than that of a wideband signal, the amount of time dispersion caused by multipath delay spread is reduced.

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Research paper thumbnail of A Review of OFDM in Consideration with WIMAX

The WiMAX technology, based on the IEEE 802.16-2004 Air Interface Standard is rapidly proving its... more The WiMAX technology, based on the IEEE 802.16-2004 Air Interface Standard is rapidly proving itself as a technology that will play a key role in fixed broadband wireless metropolitan area networks. The first certification lab, established at Cetecom Labs in Malaga, Spain is fully operational and more than 150 WiMAX trials are underway in Europe, Asia, Africa and North and South America. Unquestionably, Fixed WiMAX, based on the IEEE 802.16-2004 [1] Air Interface Standard, has proven to be a cost-effective fixed wireless alternative to cable and DSL services. In December, 2005 the IEEE ratified the 802.16e amendment [2] to the 802.16 standard. This amendment adds the features and attributes to the standard necessary to support mobility. The WiMAX Forum is now defining system performance and certification profiles based on the IEEE802.16e Mobile Amendment and, going beyond the air interface, the WiMAX Forum is defining the network architecture necessary for implementing an end-to-end MobileWiMAX2 network. Release-1 system profiles will be completed in early 2006.This particular paper focuesses on giving an overview of the mobile Wimax technology and LDPC coding typically used to enhance the performance of OFDM systems.

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Research paper thumbnail of RADON TRANSFORM BASED OFDM-IDMA SYSTEM WITH AWGN CHANNEL

This paper presents a model which is Finite Radon Transform based Orthogonal Frequency Division M... more This paper presents a model which is Finite Radon Transform based Orthogonal Frequency Division Multiplexing-Interleaver Division Multiple Access (OFDM-IDMA) system for next generation wireless communication system. FRAT is the underlying fundamental concept used for computerized tomography scanning, as well for a wide range of other disciplines, including radar imaging, Geophysical imaging, nondestructive testing and medical imaging. Recently Finite Radon Transform (FRAT) was proposed as a mapping technique in OFDM system Conventional OFDM/QAM systems are robust for multi-path channels due to the cyclically prefixed guard interval which is inserted between consequent symbols to Remove ISI. An interleaver-based multiple access schemes have also been studied in for high spectral efficiency, improved performance and low receiver complexity. This scheme relies on interleaving as the only means to distinguish the signals from different users, and hence it has been called interleave-division multiple-access (IDMA). From the simulation results the FRAT-OFDM-IDMA system performs better as compared to DFT-OFDM-IDMA and DWT-OFDM-IDMA system in term of BER performance for next generation wireless communication system. OFDM is a digital modulation scheme in which a wideband signal is split into a number of narrowband signals. Because the symbol duration of a narrowband signal will be large than that of a wideband signal, the amount of time dispersion caused by multipath delay spread is reduced.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of A Review of OFDM in Consideration with WIMAX

The WiMAX technology, based on the IEEE 802.16-2004 Air Interface Standard is rapidly proving its... more The WiMAX technology, based on the IEEE 802.16-2004 Air Interface Standard is rapidly proving itself as a technology that will play a key role in fixed broadband wireless metropolitan area networks. The first certification lab, established at Cetecom Labs in Malaga, Spain is fully operational and more than 150 WiMAX trials are underway in Europe, Asia, Africa and North and South America. Unquestionably, Fixed WiMAX, based on the IEEE 802.16-2004 [1] Air Interface Standard, has proven to be a cost-effective fixed wireless alternative to cable and DSL services. In December, 2005 the IEEE ratified the 802.16e amendment [2] to the 802.16 standard. This amendment adds the features and attributes to the standard necessary to support mobility. The WiMAX Forum is now defining system performance and certification profiles based on the IEEE802.16e Mobile Amendment and, going beyond the air interface, the WiMAX Forum is defining the network architecture necessary for implementing an end-to-end MobileWiMAX2 network. Release-1 system profiles will be completed in early 2006.This particular paper focuesses on giving an overview of the mobile Wimax technology and LDPC coding typically used to enhance the performance of OFDM systems.

Bookmarks Related papers MentionsView impact

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