Proceedings Article10.1109/AUSCTW.2013.6510061
Puncturing optimization algorithm and its applications in free space communications
Muhammad Nasir Khan,William G. Cowley,Khoa D. Nguyen +2 more
- 02 May 2013
- pp 152-157
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TL;DR: This work proposes hybrid FSO/RF communication system with joint coding scheme and implement the puncturing optimization algorithm (POA) which adaptively tackle fading effects of the individual communication system.
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Abstract: Radio frequency (RF) spectrum is already crowded and expensive to install new broadband channels. Free space optical (FSO) communication is an emerging technology which offers enormous bandwidth, low cost installation setup and highly secure link. But FSO link deteriorates significantly due to scintillation and weather conditions (fog/cloud). Hybrid FSO/RF communication system with independent coding scheme was suggested to combat fading effects of the individual communication system. We propose hybrid FSO/RF communication system with joint coding scheme and implement the puncturing optimization algorithm (POA) which adaptively tackle fading effects of the individual communication system. The proposed algorithm gives better performance gain over the fixed system and provide optimized puncturing fractions in a flexible fashion for a given channel condition.
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Citations
Importance of noise models in FSO communications
TL;DR: This work investigates the use of on-off keying and low density parity check (LDPC) code on the performance of a FSO communication system, and develops an extrinsic information transfer chart to measure the decoder convergence with and without the effect of turbulence noise.
Maximizing Throughput of Free Space Communication Systems Using Puncturing Technique
Muhammad Nasir Khan,Mohsin Jamil +1 more
TL;DR: A novel puncturing optimization algorithm is developed, which adaptively tackle fading effects of the individual communication link, which gives more than 3 dB power gain over the fixed system.
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Importance of noise models in FSO
N Khan
- 01 Jan 2014
TL;DR: This work investigates the use of on-off keying and low density parity check (LDPC) code on the performance of a FSO communication system, and develops an extrinsic information transfer chart to measure the decoder convergence with and without the effect of turbulence noise.
Heuristic Optimization Based on Penalty Approach for Surface Permanent Magnet Synchronous Machines
TL;DR: A smart design to improve the efficiency of surface permanent magnet synchronous motor design by using heuristic algorithms with penalty approaches in SPMSM design optimization and the compatibility of design optimized and numerical analysis results are acceptable and highly satisfactory.
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