The Experts below are selected from a list of 180 Experts worldwide ranked by ideXlab platform
Olivier Sentieys - One of the best experts on this subject based on the ideXlab platform.
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BSN - Latency-Energy Optimized MAC Protocol for Body Sensor Networks
2012 Ninth International Conference on Wearable and Implantable Body Sensor Networks, 2012Co-Authors: Muhammad Mahtab Alam, Olivier Berder, Daniel Menard, Olivier SentieysAbstract:This paper presents a self organized asynchronous medium access control (MAC) protocol for wireless body area sensor (WBASN). The protocol is optimized in terms of latency and energy under variable traffic. A body sensor network (BSN) exhibits a wide range of traffic variations based on different physiological data emanating from the monitored patient. For example, electrocardiogram data rate is multiple times more in comparison with body temperature rate. In this context, we exploit the traffic characteristics being observed at each sensor node and propose a novel technique for latency-energy optimization at the MAC layer. The protocol relies on dynamic adaptation of wake-up interval based on a traffic Status Register bank. The proposed technique allows the wake-up interval to converge to a steady state for variable traffic rates, which results in optimized energy consumption and reduced delay during the communication. A comparison with other energy efficient protocols is presented. The results show that our protocol outperforms the other protocols in terms of energy as well as latency under the variable traffic of WBASN.
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TAD-MAC: Traffic-Aware Dynamic MAC Protocol for Wireless Body Area Sensor Networks
IEEE Journal on Emerging and Selected Topics in Circuits and Systems, 2012Co-Authors: Muhammad Mahtab Alam, Olivier Berder, Daniel Menard, Olivier SentieysAbstract:A wireless body area sensor network (WBASN) demands ultra low power and energy efficient protocols. Medium access control (MAC) layer plays a pivotal role for energy management in WBASN. Moreover, idle listening is the dominant energy waste in most of the MAC protocols. WBASN exhibits wide range of traffic variations based on different physiological data emanating from the monitored patient. For example, electrocardiogram data rate is multiple times more in comparison with body temperature rate. In this context, we propose a novel energy efficient traffic-aware dynamic (TAD) MAC protocol for WBASN. The protocol relies on dynamic adaptation of wake-up interval based on a traffic Status Register bank. The proposed technique allows the wake-up interval to converge to a steady state for fixed and variable traffic rates, which results in optimized energy consumption. A comparison with other energy efficient protocols for three different widely used radio chips i.e., cc2420, cc1000, and amis52100 is presented. The results show that TAD-MAC outperforms all the other protocols under fixed and variable traffic rates. Finally, life- time of a WBASN was estimated and found to be 3-6 times better than other protocols.
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Traffic-aware adaptive wake-up-interval for preamble sampling MAC protocols of WSN
IEEE Intelligent Systems, 2011Co-Authors: Muhammad Mahtab Alam, Olivier Berder, Daniel Menard, Olivier SentieysAbstract:Medium access control MAC layer plays an important role for energy management in wireless sensor network (WSN). In this paper we present an adaptive wake-up-interval scheme for preamble sampling (MAC) protocols for variable traffic in WSN. The wake-up-interval is updated based on the traffic Status Register (whose contents depend on the presence of messages for a particular node). The proposed algorithm considers dominant effect of recent traffic with regards to the old traffic and also it relies on the occurrence of consecutive data packets. The results show that the sensor node adapts and converges its wake-up-interval to the best trade-off value for fixed and variable traffic patterns. Two optimization parameters (length of traffic Status Register and initial wake-up-interval value) are also tuned to achieve fast convergence speed for different traffic rates and variations.
S R Sastry Kalavakolanu - One of the best experts on this subject based on the ideXlab platform.
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Achieving Reduced Area and Power with Multi Bit Flip-Flop When Implemented In UART with Status Register
2014Co-Authors: S R Sastry KalavakolanuAbstract:A UART (Universal Asynchronous Receiver and Transmitter) is a device allowing the reception and transmission of information, in a serial and asynchronous way. This project focuses on the implementation of UART with Status Register using multi bit flip-flop and comparing it with UART with Status Register using single bit flip-flops. During the reception of data, Status Register indicates parity error, framing error, overrun error and break error. The multi bit flip-flop is indicated in this Status Register. In modern very large scale integrated circuits, Power reduction and area reduction has become a vital design goal for sophisticated design applications. So in this project the power consumed and area occupied by both multi-bit flip-flop and single bit flip is compared. The underlying idea behind multi-bit flip-flop method is to eliminate total inverter number by sharing the inverters in the flip-flops. Based on the elimination feature of redundant inverters in merging single bit flip-flops into multi bit flip-flops, gives reduction of wired length and this result in reduction of power consumption and area.
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Implementation of UART with Status Register using Multi Bit Flip-Flop
2014Co-Authors: P. Rajee Priyanka, S R Sastry KalavakolanuAbstract:A UART (Universal Asynchronous Receiver and Transmitter) is a device allowing the reception and transmission of information, in a serial and asynchronous way. This project focuses on the implementation of UART with Status Register using multi bit flip-flop. During the reception of data, Status Register indicates parity error, framing error, overrun error and break error.In modern very large scale integrated circuits, Power reduction and area reduction has become a vital design goal for sophisticated design applications. Multi-bit flip-flop is an effective power saving implementation methodology by merging single bit flip-flops in the design. The underlying idea behind multi-bit flip-flop method is to eliminate total inverter number by sharing the inverters in the flip-flops. Based on the elimination feature of redundant inverters in merging single bit flip-flops into multi bit flip-flops, gives reduction of wired length and this result in reduction of power consumption and area.
Muhammad Mahtab Alam - One of the best experts on this subject based on the ideXlab platform.
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BSN - Latency-Energy Optimized MAC Protocol for Body Sensor Networks
2012 Ninth International Conference on Wearable and Implantable Body Sensor Networks, 2012Co-Authors: Muhammad Mahtab Alam, Olivier Berder, Daniel Menard, Olivier SentieysAbstract:This paper presents a self organized asynchronous medium access control (MAC) protocol for wireless body area sensor (WBASN). The protocol is optimized in terms of latency and energy under variable traffic. A body sensor network (BSN) exhibits a wide range of traffic variations based on different physiological data emanating from the monitored patient. For example, electrocardiogram data rate is multiple times more in comparison with body temperature rate. In this context, we exploit the traffic characteristics being observed at each sensor node and propose a novel technique for latency-energy optimization at the MAC layer. The protocol relies on dynamic adaptation of wake-up interval based on a traffic Status Register bank. The proposed technique allows the wake-up interval to converge to a steady state for variable traffic rates, which results in optimized energy consumption and reduced delay during the communication. A comparison with other energy efficient protocols is presented. The results show that our protocol outperforms the other protocols in terms of energy as well as latency under the variable traffic of WBASN.
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TAD-MAC: Traffic-Aware Dynamic MAC Protocol for Wireless Body Area Sensor Networks
IEEE Journal on Emerging and Selected Topics in Circuits and Systems, 2012Co-Authors: Muhammad Mahtab Alam, Olivier Berder, Daniel Menard, Olivier SentieysAbstract:A wireless body area sensor network (WBASN) demands ultra low power and energy efficient protocols. Medium access control (MAC) layer plays a pivotal role for energy management in WBASN. Moreover, idle listening is the dominant energy waste in most of the MAC protocols. WBASN exhibits wide range of traffic variations based on different physiological data emanating from the monitored patient. For example, electrocardiogram data rate is multiple times more in comparison with body temperature rate. In this context, we propose a novel energy efficient traffic-aware dynamic (TAD) MAC protocol for WBASN. The protocol relies on dynamic adaptation of wake-up interval based on a traffic Status Register bank. The proposed technique allows the wake-up interval to converge to a steady state for fixed and variable traffic rates, which results in optimized energy consumption. A comparison with other energy efficient protocols for three different widely used radio chips i.e., cc2420, cc1000, and amis52100 is presented. The results show that TAD-MAC outperforms all the other protocols under fixed and variable traffic rates. Finally, life- time of a WBASN was estimated and found to be 3-6 times better than other protocols.
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Traffic-aware adaptive wake-up-interval for preamble sampling MAC protocols of WSN
IEEE Intelligent Systems, 2011Co-Authors: Muhammad Mahtab Alam, Olivier Berder, Daniel Menard, Olivier SentieysAbstract:Medium access control MAC layer plays an important role for energy management in wireless sensor network (WSN). In this paper we present an adaptive wake-up-interval scheme for preamble sampling (MAC) protocols for variable traffic in WSN. The wake-up-interval is updated based on the traffic Status Register (whose contents depend on the presence of messages for a particular node). The proposed algorithm considers dominant effect of recent traffic with regards to the old traffic and also it relies on the occurrence of consecutive data packets. The results show that the sensor node adapts and converges its wake-up-interval to the best trade-off value for fixed and variable traffic patterns. Two optimization parameters (length of traffic Status Register and initial wake-up-interval value) are also tuned to achieve fast convergence speed for different traffic rates and variations.
Goutam Kumar Saha - One of the best experts on this subject based on the ideXlab platform.
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SOFTWARE IMPLEMENTED HARDWARE-TRANSIENT FAULTS DETECTION
International Journal of Computing, 2014Co-Authors: Goutam Kumar SahaAbstract:This paper examines a software implemented self-checking technique that is capable of detecting processorRegisters' hardware-transient faults. The proposed approach is intended to detect run-time transient bit-errors in memory and processor Status Register. Error correction is not considered here. However, this low-cost approach is intended to be adopted in commodity systems that use ordinary off-the-shelf microprocessors, for the purpose of operational faults detection towards gaining fail-safe kind of fault tolerant system.
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A low-cost testing for transient faults
Ubiquity, 2006Co-Authors: Goutam Kumar SahaAbstract:Unconventional and low - cost software implemented testing technique for processor transient faults are briefly discussed here. On-line signatures of the Processor Status Register have been used here for detecting transient faults.
Olivier Berder - One of the best experts on this subject based on the ideXlab platform.
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BSN - Latency-Energy Optimized MAC Protocol for Body Sensor Networks
2012 Ninth International Conference on Wearable and Implantable Body Sensor Networks, 2012Co-Authors: Muhammad Mahtab Alam, Olivier Berder, Daniel Menard, Olivier SentieysAbstract:This paper presents a self organized asynchronous medium access control (MAC) protocol for wireless body area sensor (WBASN). The protocol is optimized in terms of latency and energy under variable traffic. A body sensor network (BSN) exhibits a wide range of traffic variations based on different physiological data emanating from the monitored patient. For example, electrocardiogram data rate is multiple times more in comparison with body temperature rate. In this context, we exploit the traffic characteristics being observed at each sensor node and propose a novel technique for latency-energy optimization at the MAC layer. The protocol relies on dynamic adaptation of wake-up interval based on a traffic Status Register bank. The proposed technique allows the wake-up interval to converge to a steady state for variable traffic rates, which results in optimized energy consumption and reduced delay during the communication. A comparison with other energy efficient protocols is presented. The results show that our protocol outperforms the other protocols in terms of energy as well as latency under the variable traffic of WBASN.
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TAD-MAC: Traffic-Aware Dynamic MAC Protocol for Wireless Body Area Sensor Networks
IEEE Journal on Emerging and Selected Topics in Circuits and Systems, 2012Co-Authors: Muhammad Mahtab Alam, Olivier Berder, Daniel Menard, Olivier SentieysAbstract:A wireless body area sensor network (WBASN) demands ultra low power and energy efficient protocols. Medium access control (MAC) layer plays a pivotal role for energy management in WBASN. Moreover, idle listening is the dominant energy waste in most of the MAC protocols. WBASN exhibits wide range of traffic variations based on different physiological data emanating from the monitored patient. For example, electrocardiogram data rate is multiple times more in comparison with body temperature rate. In this context, we propose a novel energy efficient traffic-aware dynamic (TAD) MAC protocol for WBASN. The protocol relies on dynamic adaptation of wake-up interval based on a traffic Status Register bank. The proposed technique allows the wake-up interval to converge to a steady state for fixed and variable traffic rates, which results in optimized energy consumption. A comparison with other energy efficient protocols for three different widely used radio chips i.e., cc2420, cc1000, and amis52100 is presented. The results show that TAD-MAC outperforms all the other protocols under fixed and variable traffic rates. Finally, life- time of a WBASN was estimated and found to be 3-6 times better than other protocols.
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Traffic-aware adaptive wake-up-interval for preamble sampling MAC protocols of WSN
IEEE Intelligent Systems, 2011Co-Authors: Muhammad Mahtab Alam, Olivier Berder, Daniel Menard, Olivier SentieysAbstract:Medium access control MAC layer plays an important role for energy management in wireless sensor network (WSN). In this paper we present an adaptive wake-up-interval scheme for preamble sampling (MAC) protocols for variable traffic in WSN. The wake-up-interval is updated based on the traffic Status Register (whose contents depend on the presence of messages for a particular node). The proposed algorithm considers dominant effect of recent traffic with regards to the old traffic and also it relies on the occurrence of consecutive data packets. The results show that the sensor node adapts and converges its wake-up-interval to the best trade-off value for fixed and variable traffic patterns. Two optimization parameters (length of traffic Status Register and initial wake-up-interval value) are also tuned to achieve fast convergence speed for different traffic rates and variations.
