Banibrata Bag

Performance Analysis of dual-hop AF relaying FSO System using Alamouti Scheme over G-G Fading Channel

In this paper, a study on the performances of dual-hop free-space optical communication systems in a serial relay configuration with amplify and forward scheme over independent Gamma-Gamma fading channels for strong turbulence condition is presented.

A Novel Reconfigurable Video Burst Processor Offering High QoS

Real-time video processing is till tode a formidable task thanks to the strict requirement on latency control and packet loss minimization. Burst processing has come to the rescue by offering buffer less operation and separation of control and data information. We report here for the first time a novel statistical embedded burst scheduling method suitable for processing class-differentiated video channels. The method is based on optimized Markov chains where the initial scheduled Markov transition probabilities are subsequently adaptively reconfigured by the scheduler to maintain the best system QoS.

Performance analysis of MIMO FSO link with Alamouti coding and switch-and-examine combining

Atmospheric turbulence is one of the main causes of degrading the quality of service in free-space optical (FSO) systems. The use of diversity techniques in an FSO system can minimize the fading effect which is caused by atmospheric turbulence. When diversity combining is applied at both the transmitter and the receiver ends, the system can mitigate the degradation more effectively. In this paper, we consider a

Capacity Analysis for Rayleigh/Gamma-Gamma Mixed RF/FSO Link with Fixed-Gain AF Relay

2\times L

Capacity analysis for Rayleigh/gamma-gamma mixed RF/FSO relayed transmission

2×L multiple-input multiple-output FSO system with on–off keying modulation where the link is affected by gamma–gamma fading. Alamouti space–time coding is implemented at the transmitter, while the receiver employs switch-and-examine combining. Analytical expressions for different performance metrics such as outage probability, average bit error rate and average capacity are derived using a moment-generating function-based approach. Numerical results are provided and are compared with Monte Carlo simulations.