Analyzing the effect of transmission errors on the performance of IEEE 802.11 is important since the wireless channels are error-prone. Most of the existing work on the performance analysis of IEEE 802.11 distributed coordination function (DCF) assumes ideal channel conditions. Although a few recent papers consider the impact of packet error rate, they assume the same packet error rate for all ...

For entropy-coded MPEG-4 images, a transmission error in a codeword may cause the underlying codeword and its subsequent codewords within a video packet to be misinterpreted, resulting in great degradation of the received MPEG-4 images. Here a transmission error may be a single-bit error or a burst error. In this study, a postprocessing approach to detection and concealment of transmission erro...

in this paper, nonlinear adjustments and price transmission mechanism between the two levels of wholesale and retail for the egg market has been examined under the threshold vector error correction model (tvecm) framework using hansen and seo (2002)’s two-regimes). the unit root test showed that both wholesale and retail egg price series were integrated of order one . the johansen co-integratio...

There is considerable evidence from the field of helical gears that noise frequencies have a close correlation with transmission errors. The general theory was first published by Harris [1], with subsequent developements by Harris, Gregory & Munro [2]. Munro [3] has written an excellent review of the theory and measurement of transmission error. A text book with a broad coverage of the subject,...

An effective error handling mechanism plays an important role to ensure the reliability and robustness of the application of controller area network (CAN) in controlling dynamic systems. This paper addresses a new online error handling approach or named per-sample-error-counting (PSeC) technique that tends to replace native error handling protocol in controller area network (CAN). The mechanism...

An error-resilient coding scheme is proposed for the transmission of images over unreliable channels. Forward Error Correction is used in conjunction with the error-resilient source coder for the protection of the compressed stream. Unlike almost all other robust coding schemes presented todate, the proposed scheme is able to decode portions of the bitstream even after the occurrence of uncorre...

The transmission over the memoryless additive white Class-A noise (AWCN) channel is considered. For uncoded transmission, an exact expression for the symbol error rate is derived. For coded transmission, the Chernoff bound on the pairwise error probability is calculated and the performance achieved on the real and the complex AWCN channels is compared. Moreover, a lowcomplexity, suboptimum deco...

Abstract—The output error of the globoidal cam mechanism can be considered as a relevant indicator of mechanism performance, because it determines kinematic and dynamical behavior of mechanical transmission. Based on the differential geometry and the rigid body transformations, the mathematical model of surface geometry of the globoidal cam is established. Then we present the analytical express...

Mobile devices in the IEEE 802.11 wireless local area network (WLAN) have the ability to transmit data frames at one of four transmission rates 1Mb/s, 2Mb/s, 5.5Mb/s and 11Mb/s. This is because the commercial WLAN transceivers are equipped with several modulation schemes. According to the characteristics of the modulation scheme, a higher transmission rate will result in a smaller transmission ...