RAKE Receiving Methods for IEEE 802.15.4a CSS System

Jeong, Jin‐Doo; Jang, Seong-Hyun; Chong, Jong‐Wha

doi:10.1109/ubicomm.2009.37

Cited by 2 publications

(3 citation statements)

References 8 publications

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“…Using without normalizing will yield a different performance in different noise environments as in [21]. To resolve this problem, should be normalized by using as given The proposed algorithm, SNR = −6.5 dB in (10), and the decision variable, , as in (11), which uses and is proposed in this section. Consider The start frame delimiter is composed of four symbols, as in [1].…”

Section: Time Synchronizermentioning

confidence: 99%

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Chirp Spread Spectrum Transceiver Design and Implementation for Real Time Locating System

Kim

Chong

2015

International Journal of Distributed Sensor Networks

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A chirp spread spectrum (CSS) transceiver architecture for IEEE 802.15.4a is proposed and implemented. In the transmitter, the size of the read-only memory that stores CSS signal samples for the chirp modulator is reduced by removing duplicate samples among subchirps. In the receiver, a matched filter is utilized to remove the other band noise caused by the band hopping property of CSS. A robust time synchronizer and chirp demodulator based on the matched filter are proposed. Low complexity architectures of the matched filter and biorthogonal decoder are also proposed. All of the proposed architectures are implemented in the fieldprogrammable gate array chip and verified.

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Section: Time Synchronizermentioning

confidence: 99%

“…In contrast, there are few studies on the transceiver architecture of CSS. Jeong et al [10] proposed the rake receiver for CSS, and Kim et al [11] introduced the autocorrelation-based receiver and a receiver that adopts the dual-band filtering method. Yaqoob and Chong [2] proposed a decision feedback receiver that can be applied to CSS.…”

Section: Introductionmentioning

confidence: 99%

Chirp Spread Spectrum Transceiver Design and Implementation for Real Time Locating System

Kim

Chong

2015

International Journal of Distributed Sensor Networks

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“…In [9], authors mainly focused on channel estimation using chirp signals and briefly discussed orthogonal chirp signals in multipath diversity using computer simulations only. In [10], authors suggested two RAKE receiver architectures for chirp spread spectrum system and evaluated performance using computer simulations. It is important to understand the bit error probability performance of chirp modulation in diversity reception as well as in correlated fading channels.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of MRC-chirp system over independent and correlated fading channels

Khan

Rao

Wang

2013

2013 26th IEEE Canadian Conference on Electrical and Computer Engineering (CCECE)

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In this paper, chirp modulation is proposed to employ in Maximal Ratio Combining (MRC) diversity, referred to as MRCChirp system. Moment generating function (MGF) approach is used to derive easy-to-compute expressions for average bit error probability (ABEP) for two fading situations. Firstly, independent fadings with Rayleigh and Nakagami-statistics are considered. Next, an exponentially correlated fading environment with Nakagami-statistics is considered. The ABEP performance of the proposed system is illustrated using analytical expressions and using extensive Monte Carlo simulations. Numerical results show close agreement of analytical work with those of simulations. A discussion of numerical results on the performance of MRC-Chirp system as a function of diversity order , chirp modulation parameters, and fading parameters is presented.

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RAKE Receiving Methods for IEEE 802.15.4a CSS System

Cited by 2 publications

References 8 publications

Chirp Spread Spectrum Transceiver Design and Implementation for Real Time Locating System

Chirp Spread Spectrum Transceiver Design and Implementation for Real Time Locating System

Performance analysis of MRC-chirp system over independent and correlated fading channels

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