Performance Evaluation of UWB Wireless Link

Gomes, Joanne; Mishra, Bimal Kumar

doi:10.11591/ijins.v1i3.722

Cited by 5 publications

(4 citation statements)

References 9 publications

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“…In fact, it can support data rate more than 1 Gigabits per second (Gbps) [2], which is suitable for high speed multimedia applications such as video conferencing, and radar detection [3]. However, the standard UWB indoor channel implemented by IEEE P802.15.3a Wireless Personal Area Networks (WPAN) up to now; still contains a response of 60-200 multipaths [4], which can cause severe inter-symbol interference (ISI) and multi-user access interference (MAI).…”

Section: Introductionmentioning

confidence: 99%

Bit-error-rate Optimization for CDMA Ultra-wideband System Using Generalized Gaussian Approach

Chung¹,

Alias²,

Jiat³

2017

IJECE

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Ultra-wideband is a wireless technology arisen for future high speed multimedia applications. It can provide data rate in excess of Gigabits per second by transmitting impulse signal through the free space. However, the ultra-wideband indoor channel models proposed by the IEEE P802.15.3a suffer long multipath propagation. Due to this multipath effect, several studies have been done to improve the bit-error-rate performance of the ultrawideband system in the existence of severe interference. Yet, most of the proposed algorithms were formulated based on the Gaussian distribution, which is not true in ultra-wideband. In this paper, we first analyze the statistical behavior of the CDMA-UWB signal by applying the KullbackLeibler divergence index. Based on the analysis, a non-Gaussian equalizer is developed by deriving an enhanced bit-error-rate optimization algorithm using the Generalized Gaussian approach. The proposed equalizer has been shown to achieve a performance gain of at least 1.5dB to 2dB over the other equalizers simulated under IEEE P802.15.3a channel models.

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Section: Introductionmentioning

confidence: 99%

Bit-error-rate Optimization for CDMA Ultra-wideband System Using Generalized Gaussian Approach

Chung¹,

Alias²,

Jiat³

2017

IJECE

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“…Various applications of UWB antenna such as imaging, remote sensing, location tracking, sensor networks and medical attracted industry people and researchers towards design of UWB antenna. Numerous designs of UWB antenna have been reported in [2]- [5].However the existing narrowband wireless communication system such as 3.3 to 3.7 GHz (Wi-MAX), 3.7-4.2 GHz (C-band satellite), 5.15 to 5.825 GHz (WLAN) ,7.25-7.75 GHz (X-band satellite communication system) and 8.025-8.4GHz (ITU-band) causes potential interferences to the UWB systems operating over 3. . UWB antenna is the most important element of UWB system and should provide a band notched characteristics to avoid the potential interferences of the forementioned band.…”

Section: Introductionmentioning

confidence: 99%

Compact Integrated Bluetooth UWB Antenna with Quadruple Bandnotched Characteristics

Labade

Deosarkar

Pisharoty

2015

IJECE

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In this paper,a compact printed dualband antenna for Bluetooth and UWB applications with WiMax(3.3-3.7 GHz), C-band satellite downlink(3.7-4.2GHz), WLAN(5.15-5.825GHz) and DSRC(5.5-5.925GHz) bandnotched characteristics is proposed and investigated. By etching two half-wavelength L-shaped slots in the radiating patch and an inverted U-shaped slot in the microstrip feedline quadruple bandnotched characteristics is obtained. Further, by embedding quarter wavelength parasitic strip at two edges of U-shaped radiating patch dualband characteristics with desired bandwidth is obtained. the proposed antenna is designed and fabricated on a FR4 substrate of dimensions 24mm X 35mm that operates over a 2.4-11GHz with S11<-10dB except over notch bands of 3.3-3.7GHz, 3.7-4.2GHz,5.15-5.625GHz and 5.625-6GHz. Directional pattern in E-plane and nearly omnidirectional pattern in H-plane are observed over a UWB band except at desired bandnotched freqencies. Less variation in group delay and pulse deformation shows good time domain characteristics. In addition, the structure exhibits stable gain over the desired band.

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“…UWB radio techniques allow low power data transmission over an extremely wide range of bandwidth in the indoor environment [1,2]. Accurate characterization of UWB channel propagation is essential to many communication systems [3,4].…”

Section: Introductionmentioning

confidence: 99%