Novel receiver structure for bluetooth based on modified zero-crossing demodulation

Scholand, Tobias; Jung, Peter

doi:10.1109/glocom.2003.1258334

Cited by 17 publications

(16 citation statements)

References 10 publications

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“…The Maximum Likelihood Sequence Estimation (MLSE) lower bound on the BER for transmission over an AWGN channel is given by Scholand and Jung [35,38] …”

Section: T R a Ns M I T T E R M O D E Lmentioning

confidence: 99%

“…This system model extends the presentations of [35][36][37][38]. First, we shall give a representation of binary FM in Section 2 and reflect possible detectors in Sections 3 and Section 4 will consider higher order differential phase shift keying schemes, the corresponding detectors will be given in Sections 5 and Section 6 will conclude the manuscript.…”

Section: Introductionmentioning

confidence: 98%

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A Real-Time Zero-Crossing Demodulation Concept

Scholand

Spiegel

Waadt

et al. 2006

Wireless Pers Commun

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Short range communication systems such as Bluetooth and Digital Enhanced Cordless Telecommunications require low-cost transceiver structures. Hence, the development of appropriate receiver techniques has been a major research topic. Particularly, analog limiter-discriminator with integrate and dump filtering (LDI) techniques have received considerable attention. With the availability of digital signal processing, the digital implementation of LDI techniques has become increasingly attractive. In order to make LDI receivers more accessible, zero-crossing detection was proposed. In this communication, the authors shall focus on a novel, yet promising, approach to digital zero-crossing detection in the intermediate frequency domain. Zero-crossing demodulation is an irregular sampling technique, which replaces the commonly employed regular, i.e. temporally equidistant sampling technique in the mentioned low-cost receivers. In this manuscript, a real-time capable receiver concept deploying zero-crossing demodulation shall be presented. First, the authors shall present the theoretical aspects of zero-crossing demodulation with special focus on both Bluetooth Basic Rate and Bluetooth Enhanced Data Rate. Next, the obtained performance results in terms of the bit error ratio shall be given.Keywords: π /4-Shifted differential quadrature phase shift keying, bluetooth, bluetooth basic rate, Bluetooth enhanced data rate, continuous phase modulation, differential phase shift keying, digital enhanced cordless telecommunications, frequency modulation, Gaussian frequency shift keying, minimum shift keying, octal differential phase shift keying, real-time implementation, zero-crossing demodulation.

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“…The Maximum Likelihood Sequence Estimation (MLSE) lower bound on the BER for transmission over an AWGN channel is given by Scholand and Jung [35,38] …”

Section: T R a Ns M I T T E R M O D E Lmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

A Real-Time Zero-Crossing Demodulation Concept

Scholand

Spiegel

Waadt

et al. 2006

Wireless Pers Commun

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“…The power efficiency is the achievable bit error rate (BER) for a certain signal-to-noise power ratio (SNR). The limiter discriminator with an integrator (LDI) receiver [2], phase differential receiver [3], and Bluetooth zero-crossing matched filter (BT-ZXMF) receiver [4] are low-cost and simple to implement but suffer from low power efficiency. A low-complexity simplified maximum a posteriori (MAP) receiver using coherent sequence detection was presented in [5].…”

Section: Introductionmentioning

confidence: 99%

A New GFSK Demodulation Technique using EKF in Bluetooth Receivers

Abdallah¹,

Nsour²,

Zohdy³

2015

International Journal of Advanced Research in Computer and Comm

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Bluetooth is a wireless technology that is widely used in consumer electronics and deployed in many industries due to its ease of use and low cost. Gaussian frequency shift keying (GFSK) is the modulation scheme used in Bluetooth receivers to achieve a basic data rate of 1 Mbps. In this article, a new non-coherent demodulation technique based on the Extended Kalman Filter (EKF) is presented to detect a GFSK modulated signal in Bluetooth receivers for AWGN channels. The bit error rate (BER), and Packet Error Rate (PER) were used as the performance metrics of the proposed receiver at both the physical and system levels. Simulation results show an improvement in the performance compared to other existing techniques presented in the literature.

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“…Conventional digital receivers based on a zero-crossing demodulator (ZCD) were proposed in [1,2] and have been widely employed in wireless communication systems for their efficiency and simplicity [3][4][5][6][7]. The ZCD has also been commonly used in the receivers of RFID readers [8][9][10][11][12][13].…”

Section: Related Workmentioning

confidence: 99%

A Robust Baseband Demodulator for ISO 18000-6C RFID Reader Systems

Cheng

Cho

2012

International Journal of Distributed Sensor Networks

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One key challenge for ultra-high frequency (UHF) radio-frequency identification (RFID) reader design is to demodulate the weak tag response signal which tends to be easily distorted and has considerable frequency deviations. In this paper, a baseband demodulator based on a matched filter (MF) is proposed to enhance the reliability of signal processing for the EPCglobal Class-1 Generation-2 (Gen2) RFID reader systems. The proposed demodulator is very robust against strong signal distortions and large frequency deviations happening on the received backscattered signal from a passive RFID tag. The validity and usefulness is demonstrated by both computer simulations and implementation experiments.

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Novel receiver structure for bluetooth based on modified zero-crossing demodulation

Cited by 17 publications

References 10 publications

A Real-Time Zero-Crossing Demodulation Concept

A Real-Time Zero-Crossing Demodulation Concept

A New GFSK Demodulation Technique using EKF in Bluetooth Receivers

A Robust Baseband Demodulator for ISO 18000-6C RFID Reader Systems

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