OFDM multi-carrier systems
Stochastic Petri Nets for Wireless Networks
... (OFDM) multi-carrier systems with SHLPN formalism in order to simplify the cross-layer performance analysis of modern wireless ...of OFDM subchannels, our proposed SHLPN model uses ...
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Carrier frequency offset estimation for OFDM systems with time-varying DC Offset
... advantages, OFDM is vulnera- ble to various disturbances in practice. Carrier frequency offset (CFO) is one of most well-known disturbances for ...degrades OFDM performance ...during OFDM ...
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Improved OFDM by cancellation carrier frequency offset in GFDM based on multi-carrier modulation for future machine to machine systems
... Due to its attractive properties, generalized frequency division multiplexing is recently being discussed as a candidate waveform for the fifth generation of wireless communication systems (5G). generalized ...
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Margin Adaptive Resource Allocation for Multi–user OFDM Systems by Particle Swarm Optimization and Differential Evolution
... In this paper, PSO [12], [13], [14] has been modified and applied to minimize the total transmit power to allocate sub– carriers and number of bits for multi–user OFDM systems. The modifications are ...
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BER performance of MC DS CDMA systems in the presence of timing jitter : a thesis presented in partial fulfillment of the requirements for the degree of Master of Engineering in Information and Telecommunication Engineering at Massey University, Palmerston North, New Zealand
... CDMA systems based on the combination of CDMA schemes and OFDM technique, which are referred to as multi-carrier CDMA systems, has received a lot of attention in the field of wireless ...
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TWO APPROACHES ON CARRIER FREQUENCY OFFSET ESTIMATION IN MIMO OFDM SYSTEMS
... In this paper, we proposed a novel iterative carrier frequency offset estimation algorithm based on the EKF algorithm and multi-antenna channel ML estimation for MIMO-OFDM systems. In the ...
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Exploring the reconfigurability options of multi carrier CDMA in cognitive radio systems
... Nolan K. [8] suggested the option of dynamic selection of sub- carriers in an OFDM system using a channel mask and an enhanced training symbol (ETS). More recently, [16] has ex- plored the option of nulling ...
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Design of Space-Time Coded Single-Carrier and Multi-Carrier MIMO-CDMA systems
... Multicarrier systems convert a high rate data stream into multiple parallel lower data rate sub streams, and each modulated symbol will be carried on a different ...And multi-carrier system uses one ...
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An Improved Technique to Reduce ICI in OFDM Systems
... communication. OFDM promises at providing high data rate transmission while maintaining spectral efficiency because it is used as Multi Carrier (MC) communication technique ...an OFDM ...
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Inter Carrier Interference Cancellation in OFDM Systems under Different Channeling Environments
... (multi carrier modulation), OFDM yields good results over Frequency division multiplexing ...Generally OFDM is considered as optimal version of the MCM schemes and respective representations ...
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Packet Format Design and Decision Directed Tracking Methods for Filter Bank Multicarrier Systems
... communication systems. Among various multi- carrier modulation methods, orthogonal frequency division multiplexing (OFDM), [1], is the most widely adopted method in the current ...While ...
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Filter Bank Multicarrier Modulation Scheme for 5G Cellular Communication Systems under Various Fading Channels
... Evaluation systems like Dynamic Spectrum Access (DSA) and Cognitive Radio (CR), OFDM is a popular Multi-Carrier method but suffers from few ...FBMC. OFDM and FBMC are ...
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OFDM versus Single Carrier: A Realistic Multi Antenna Comparison
... munication systems on a chip. For these systems, he overlooked research on the DSP processing, the mixed-signal RF front-end, and the software ...multidisciplinary systems. Un- der his supervision, ...
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Enhanced MIMO-OFDM System for Wireless Communication
... communication systems suffering from frequency ...the OFDM system using Multi-Input Multi-Output technology (MIMO) technology supported with reduction of Inter Symbol Interference (ISI), Inter ...
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Spectrally Efficient Multi Carrier Modulation Using Gabor Transform
... the OFDM and NOFDM systems and the data transmit- ted through the NOFDM system has a BER just slightly higher than that transmitted through an OFDM system for a given SNR (depicted in Figure ...
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Performance Improvement of ofdm System By using ici Self Cancellation Technique
... world OFDM is very functional for high speed data transmission systems, because it has numerous unique features like Robustness to multipath fading, high spectral efficiency, and immunity to impulse ...
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PAPR Reduction Using PSO-GSA Tuned PTS Techniques in MC-CDMA System
... Abstract—Multi Carrier Code Division Multiple Access (MC-CDMA) is a promising technology for 4G wireless communication ...and Multi Carrier Code Division Multiple Access (MC-CDMA), which ...
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Carrier Frequency Offset Estimation for OFDM Systems Using Time/Frequency-Domain Techniques
... chosen multi-carrier modulation technique for wireless and multimedia communication ...[1]. OFDM can provide large data rates with sufficient robustness to radio channel ...of OFDM, it has ...
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Lowest PAPR Selection Technique from SLM and PTS with One IFFT Block in Wireless MC-CDMA Communication Systems
... multicarrier systems (MC), such as Orthogonal Frequency Division Multiplexing (OFDM), or in Multi-Carrier Code Division Multiple Access (MC-CDMA) systems, due to large number of ...
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Advances in the Analysis of Adaptive OFDM Systems
... generic multi-carrier transmission technique. The OFDM/OQAM imple- mentation requires the additional shaded blocks which are not employed by ...both systems can co-exist without many changes ...
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