MUX-based design of DPLL for wireless communication

Bhattacharyya, Sabyasachi; Sarma, Ripunjoy; Bhattacharyya, Kaustubh; Ahmed, Ragib Nasir; Saikia, Roushan

doi:10.1109/icices.2014.7033978

Cited by 3 publications

(5 citation statements)

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“…Loop Filter: The output of the PFD consists of two terms one is a high frequency term and the other is a slow changing phase error signal which actually contains the useful information. The loop filter is basically a low pass filter which eliminates the high frequency component and at the output of the filter only the phase error signal is obtained [6][8] [9]. The filtering operation is governed by equations (4) and (5).…”

Section: ) Essential Components Of Digital Phase Locked Loopmentioning

confidence: 99%

“…Besides, analyzing the proposed system for corrupted baseband signals, the system has also been tested under critically Rayleigh Faded and noise corrupted wireless environment so as to get a proper measure of performance of the system under extremely degraded real time environment [6]. Similar works has been found in [7] [8] [9].…”

Section: Introductionmentioning

confidence: 97%

“…The real time signals that exist are mostly characterized by unique characteristics possessed by them [1]. These characteristics are much signal-specific and a parameter that represents one category of signals which may not have much relevance for signals belonging to another category.…”

Section: Introductionmentioning

confidence: 99%

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Zero crossing DPLL based phase recovery system and its application in wireless communication

Bhattacharyya

Ahmed

Purkayastha

et al. 2015

2015 International Conference on Computer, Communication and Control (IC4)

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Proper tracking of signals at any intermediate stage of a processing system or at the receiver of modern day communication systems has been given much importance over the last two decades. Proper tracking of the signal envelope is evidently very necessary; for communication systems, to recover the message signal that was transmitted with minimum error whereas for signal processing applications, to regenerate the signal in its most precise form by removing unwanted noise, harmonics, undesired frequency components etc. To develop a system which would be able to track a wide range of signals accurately, a generalized parameter should be available to us which would define all signals accurately. The 'instantaneous phase' information of the signal is kept intact and thus it is a very vital parameter to represent any signal. Thus, if the instantaneous phase of the signal is properly tracked, the signal can be easily regenerated. In recent times, DPLL algorithms have emerged as an efficient technique for phase recovery and considering this aspect, a Zero Crossing Algorithm based DPLL system for phase recovery is proposed.

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Section: ) Essential Components Of Digital Phase Locked Loopmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

See 1 more Smart Citation

Zero crossing DPLL based phase recovery system and its application in wireless communication

Bhattacharyya

Ahmed

Purkayastha

et al. 2015

2015 International Conference on Computer, Communication and Control (IC4)

Self Cite

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“…Most phase tracking systems of now-a-days are designed for detection of instantaneous phase of the time-varying signal or focus on providing a replica of the originally transmitted wave [11].A proper discussion on the components of the DPLL has been laid down in this section. This section also includes brief discussions on the QPSK modulated signals and also on the Rayleigh fading model that has been considered for performance analysis.…”

Section: Theoretical Backgroundmentioning

confidence: 99%

“…The control voltage as depicted in equation (5) is fed to the VCO and based on that it increases or decreases the frequency of the local oscillator to achieve the 'phase locking' of both the signals [5] [11]. A generalized equation representing the digitized VCO operation is given by equation (6).…”

Section: Voltage Controlled Oscillator (Vco):it Is Anmentioning

confidence: 99%