Intelligent approach to video transmission over 2.4 GHz wireless technology

Kazemian, Hassan B.; Chantaraskul, Soamsiri

doi:10.1109/fuzzy.2008.4630372

Cited by 2 publications

(1 citation statement)

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“…The same process continues to find Q scale for P picture then B picture. Eventually, after maximum four tests, a set of Q scale is offered for new GOP to be used in the MPEG encoder [17]. Figure 3 shows the structure of RBF rate control.…”

Section: Rbf Controller For Mpeg Rate Controlmentioning

confidence: 99%

An intelligent MPEG rate control in 2.4 GHz frequency

Kazemian

Chantaraskul

2009

Adaptive Control & Signal

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Transmitting Moving Picture Expert Group (MPEG) Variable Bit Rate (VBR) video stream over 2.4 GHz wireless frequency demands a large bandwidth and may result in data loss and delay, because of excessive fluctuation in bit rate. Transmission over 2.4 GHz frequency further causes uncertainty due to interferences by other wireless devices in the same frequency band and/or common dynamic channel noises. As a result, an intelligent system has been developed for MPEG video transmission over 2.4 GHz frequency band. A novel fuzzy controller automatically determines the quantization scale for each Group Of Picture (GOP) of the encoder during the transmission period. Moreover, a fuzzy controller and a neural-fuzzy controller stream the MPEG video data to conform to the current condition of dynamic wireless channel to maintain image quality during the transmission. In the intelligent system, rather than choosing the parameters associated with a given membership function arbitrarily, these parameters are chosen as such to tailor the membership functions to the desired input/output data. The intelligent system computes and trains the system in such a way that its output will be equal to the desired value. Computer simulation results demonstrate that the proposed intelligent technique increases transmission rate and reduces data loss, excessive delay and image quality degradation as compared with a conventional video transmission over 2.4 GHz frequency band.

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Section: Rbf Controller For Mpeg Rate Controlmentioning

confidence: 99%