Enhancement of the IEEE 802.15.4 MAC Protocol for Scalable Data Collection in Dense Sensor Networks

Yedavalli, Kiran; Krishnamachari, Bhaskar

doi:10.4108/icst.wiopt2008.2982

Cited by 23 publications

(42 citation statements)

References 14 publications

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“…Different from most solutions available in the literature, our approach is specifically suited for the IEEE 802.15.4 and ZigBee standards. In contrast with many approaches such as [12], our scheme does not require any modification to the IEEE 802.15.4 MAC protocol, and hence can be implemented in real sensors even when the MAC protocol cannot be altered. Furthermore, unlike [7], [6], our scheme is adaptive, hence it can tailor the operating parameters -e.g., the backoff window size and the number of (re)transmissions -according to the actual traffic demands.…”

Section: A Our Contributionsmentioning

confidence: 99%

“…In the context IEEE 802.15.4-based WSNs, many papers [12], [13], [14] highlighted that a significant share of transmitted messages may be lost due to contention, especially when the number of sensor nodes and the message size are large. In addition, [6] and [7] have shown that serious reliability issues arise when power management is enabled, even in networks with a small number of sensor nodes.…”

Section: Related Workmentioning

confidence: 99%

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Reliability and Energy-Efficiency in IEEE 802.15.4/ZigBee Sensor Networks: An Adaptive and Cross-Layer Approach

Francesco

Anastasi

Conti

et al. 2011

IEEE J. Select. Areas Commun.

156

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Abstract-A major concern in wireless sensor networks (WSNs) is energy conservation, since battery-powered sensor nodes are expected to operate autonomously for a long time, e.g., for months or even years. Another critical aspect of WSNs is reliability, which is highly application-dependent. In most cases it is possible to trade-off energy consumption and reliability in order to prolong the network lifetime, while satisfying the application requirements. In this paper we propose an adaptive and cross-layer framework for reliable and energy-efficient data collection in WSNs based on the IEEE 802.15.4/ZigBee standards. The framework involves an energy-aware adaptation module that captures the application's reliability requirements, and autonomously configures the MAC layer based on the network topology and the traffic conditions in order to minimize the power consumption. Specifically, we propose a low-complexity distributed algorithm, called ADaptive Access Parameters Tuning (ADAPT), that can effectively meet the application-specific reliability under a wide range of operating conditions, for both single-hop and multi-hop networking scenarios. Our solution can be integrated into WSNs based on IEEE 802.15.4/ZigBee without requiring any modification to the standards. Simulation results show that ADAPT is very energy-efficient, with near-optimal performance.

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Section: A Our Contributionsmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Reliability and Energy-Efficiency in IEEE 802.15.4/ZigBee Sensor Networks: An Adaptive and Cross-Layer Approach

Francesco

Anastasi

Conti

et al. 2011

IEEE J. Select. Areas Commun.

156

View full text Add to dashboard Cite

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“…However, in the p-persistent CSMA/CA, the backoff interval is based on a geometric distribution with a specific probability of transmission, p. Therefore, the probability that a node stays idle when having a busy medium is 1 − p. The p-persistent CSMA/CA provides very close approximation to the IEEE 802.11 [48][50][51] [52], and the memoryless backoff property makes it suitable for the purpose of analysis.…”

Section: Adaptation To the Number Of Neighboring Nodesmentioning

confidence: 99%

“…Based on the defined probability of transmissions and since the packet length, L, is fixed, [52]. For maximum system performance in terms of throughput, the value of V T should be minimized.…”

Section: Adaptation To the Number Of Neighboring Nodesmentioning

confidence: 99%

Mobility impact in IEEE 802.11p infrastructureless vehicular networks

2012

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Vehicular ad hoc networks (VANETs) are an extreme case of mobile ad hoc networks (MANETs). High speed and frequent network topology changes are the main characteristics of vehicular networks. These characteristics lead to special issues and challenges in the network design, especially at the medium access control (MAC) layer. Due to high speed of nodes and their frequent disconnections, it is difficult to design a MAC scheme in VANETs that satisfies the quality-of-service requirements in all networking scenarios.In this thesis, we provide a comprehensive evaluation of the mobility impact on the IEEE 802.11p MAC performance. The study evaluates basic performance metrics such as packet delivery ratio, throughput, and delay, as well as the impact of mobility factors. The study also presents a relation between the mobility factors and the respective medium access behavior. Moreover, a new unfairness problem according to node relative speed is identified for both broadcast and unicast scenarios. To achieve better performance, we propose two dynamic contention window mechanisms to alleviate network performance degradation due to high mobility. Extensive simulation results show the significant impact of mobility on the IEEE 802.11p MAC performance, an identification of a new unfairness problem in the vehicle-to-vehicle (V2V) communications, and the effectiveness of the proposed MAC schemes.iii Acknowledgements I would like to express my deepest appreciation and gratitude to my supervisor Professor Weihua Zhuang for her guidance, support, and share of knowledge. Professor Zhuang can be considered as a role model for the professional academic supervisor. She gave me the opportunity to choose the topic of my Master's research, and provided me with invaluable suggestions and advice. She always inspired me when discussing research problems. In addition to her solid knowledge that enriched my research, she was always available, professional, helpful, and extremely nice. Her extraordinary commitment to the excellence of research made the opportunity to work with her a true reward of my Master's research.

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“…This is called batched arrivals [5], where many nodes attempt to transmit packets at the same time, possibly resulting in severe collisions [6]. This type of data traffic appears in many sensor network applications [7]- [9]; it is called one-shot data (OSD) in [10]. For example, in many sensor network applications to monitor the environment, such as a bush fire detection system or a humidity monitoring system, when the temperature rises and exceeds a threshold near the fire itself, or humidity rises before rainfall, nearby nodes will be triggered and will simultaneously send one packet each.…”

Section: A Assumptionsmentioning

confidence: 99%

Analytical Model of Single-Hop IEEE 802.15.4 Data Aggregation in Wireless Sensor Networks

Hunter

2009

2009 IEEE International Conference on Communications Workshops

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Abstract-This paper introduces a new 4D Markov chain model for IEEE 802.15.4 wireless transmission, which corrects errors in an existing 3D model and provides more accurate results. It also introduces an analytical technique for calculating the pdf and mean of the number of time slots required to complete all transmissions, when a set of nodes contend for the channel at the beginning of a superframe. It is assumed that transmission takes place in beacon mode but without acknowledgement (NACK mode). The model can determine the optimum value of the MAC attribute SO required to save energy, and the shortest delay required to receive all transmitted packets with an acceptable probability. This model also suggests an upper threshold for the number of nodes, and the packet length required, to achieve acceptable end-to-end delay. A traffic model for the aggregated data generated by the coordinating node may also be derived based upon this analysis.Keywords-802.15.4 beacon enabled mode, Markov chain, analytical modeling, traffic model analysis I. BACKGROUND AND MOTIVATION

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Enhancement of the IEEE 802.15.4 MAC Protocol for Scalable Data Collection in Dense Sensor Networks

Cited by 23 publications

References 14 publications

Reliability and Energy-Efficiency in IEEE 802.15.4/ZigBee Sensor Networks: An Adaptive and Cross-Layer Approach

Reliability and Energy-Efficiency in IEEE 802.15.4/ZigBee Sensor Networks: An Adaptive and Cross-Layer Approach

Mobility impact in IEEE 802.11p infrastructureless vehicular networks

Analytical Model of Single-Hop IEEE 802.15.4 Data Aggregation in Wireless Sensor Networks

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