Jeich Mar

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Following the DSRC vehicular communications IEEE802.11p physical layer standards, this paper presents the required computing time estimations of baseband processing modules on the DSP platform and uses this estimation to explain the decision of choosing to implement the 64 point IFFT/FFT module with the FPGA chip. The IFFT/FFT processing time of OFDM(More)
In this paper, an intrusion detection system (IDS) based on adaptive neuro-fuzzy inference system (ANFIS) rule is realized to minimize the detection delay for the deauthentication denial-of-service (DOS) attacks on the medium access control (MAC) layer of a wireless local area network (WLAN). Both the average sequence number gap (SNG) between the successive(More)
Based on the planned cells, the traffic performance of the Mobile WiMAX for multimedia services are simulated to observe the relationship among vehicle speed, MIMO antenna mode, operation environment and channel throughput. The effect of user mobility on the handoff rate for new generation and handoff calls is considered in the simulations. The channel(More)
Based on the constellation diagram of the different modulations, a novel S and Π-decision rule is designed for the analog demapper of the orthogonal frequency-division multiplexing (OFDM) systems. The dedicated short-range communications (DSRC) system is chosen as an OFDM platform to compare the performance among the proposed S and Π-decision decoder,(More)
The effect of the mobile station (MS) speed on the traffic performance of an integrated Mobile WiMAX and DSRC multimedia networks applied to the highway communication link of the vehicle position system (VPS) is presented. The probability density function (pdf) and cumulative distribution function (cdf) of cell residence time for both the new call and(More)