GSM, GPRS and EDGE Performance: Evolution Toward 3G/UMTS
GSM, GPRS and EDGE Performance: Evolution Toward 3G/UMTS
Cross-layer QoS support for multimedia delivery over wireless internet
EURASIP Journal on Applied Signal Processing
Variable-rate coding for slowly fading Gaussian multiple-access channels
IEEE Transactions on Information Theory
Adaptation techniques in wireless packet data services
IEEE Communications Magazine
Network-assisted resource management for wireless data networks
IEEE Journal on Selected Areas in Communications
Design and analysis of new digital modulation classification method
WSEAS TRANSACTIONS on COMMUNICATIONS
Software defined adaptive codec for cognitive radio
WSEAS TRANSACTIONS on COMMUNICATIONS
Hi-index | 0.00 |
This article proposes an adaptive coded modulation (ACM) with multi-levels qualities of service analysis, which can be used to perform physical layer functions in software radio receivers for beyond third generation systems. ACM approche employs multiple coding and modulation schemes in order to adapt instantaneously spectral efficiency to the signal-to-noise ratio variations SNR. The idea is to study transmission schemes performance which allow dynamic bandwidth sharing among various services in multimedia mobile and wireless networks in different channel environments. The aim is to select the appropriate modulation and channel coding modes based on signal quality measurement via a decision feedback block (DFB). Decision taken by the DFB block is based on different QoS parameters that depend in class and type of multimedia traffic. The DBF block is introduced in order to mitigate the channel quality fluctuations. The channel coded adaptive modulation schemes can be viewed as a lower complexity alternative of mitigating the channel quality fluctuations in comparison to multiple-transmitter and multiple-receiver. Implementing DFB necessitate to simulate and analyze different combinations between modulation and channel coding blocs for different data types.