Centralized broadcast scheduling in packet radio networks via genetic-fix algorithms

Ngo, Chiu; Li, V.O.K.

doi:10.1109/tcomm.2003.816950

Cited by 47 publications

(34 citation statements)

References 5 publications

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“…Although these algorithms are widely used, their applications are limited due to the fact that the network delay is enormously increased with the increased load induced by the competition. TDMA scheduling is a widely applied MAC level protocol with high efficiency, where the problem is usually to determine the shortest conflict-free assignment of slots where each link or node is activated at each allocation slot [3][4][5][6][18][19]. Previous work on scheduling algorithms focus on either decreasing the length of schedules [18] or distributed implementation [19].…”

Section: Related Workmentioning

confidence: 99%

A Green TDMA Scheduling Algorithm for Prolonging Lifetime in Wireless Sensor Networks

Long

Dong

Ota

et al. 2017

IEEE Systems Journal

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Abstract-Fast data collection is one of the most important research issues for Wireless Sensor Networks (WSNs). In this paper, a TMDA based energy consumption balancing algorithm is proposed for the general k-hop WSNs, where one data packet is collected in one cycle. The optimal k that achieves the longest network life is obtained through our theoretical analysis. Required time slots, maximum energy consumption and residual network energy are all thoroughly analyzed in this paper. Theoretical analysis and simulation results demonstrate the effectiveness of the proposed algorithm in terms of energy efficiency and time slot scheduling.Index Terms-Wireless Sensor Networks, TDMA, load balancing, lifetime, k-hop network.I. INTRODUCTION ireless sensor networks (WSNs) [1][2][3][4] consists of a set of small, battery-operated, energy constrained sensor nodes, whose main goal is twofold: to monitor their surroundings for local data and to forward the gathered data toward a sink node where further processing and analysis of raw data through multi-hop communication. This transmission of data from nodes to sink often correspond to a many-to-one fashion or a "funnel" type of communication called convergecast [3][4][5][6][7][8][9].Convergecast [3-9] is a typical many-to-one communication pattern in sensor network applications, which can be considered as the reverse operation of broadcast or multicast. Researchers are working hard to minimize the time to execute convergecast and at the same time maximizing the network lifetime. There is a great deal of work in this field.A: In the case of reducing convergecast time. TDMA is a MAC communication method with non-conflict-detection capability, small number of conflicts, low energy usage, nice real-time performance and high reliability. Relevant research can be referred to in [3][4][5][6][7][8][9]. Ref.[6] and [9] mainly discuss the TDMA scheduling scheme that requires the minimum time slot in convergecast in the linear sensor network, but they do not mention how to balance the energy consumption as well as how to improve the network life.B: As the energy of wireless sensor nodes is limited, how to minimize the level of energy consumption and balance energy consumption to improve the network lifetime is another important topic in WSN research. Ref.[10-11] mainly discussed the strategy that how to improve the network lifetime from the energy being balanced, while the premise of balancing energy consumption is to obtain accuracy the amount of data in network and the energy consumption. The traffic characteristics of data collection in network are mainly discussed in [12][13][14]. The energy consumption of the network can be used to guide network performance optimization. Although the energy balance strategy can effectively improve the network performance, the ultimate goal is to maximize the network lifetime with the least number of nodes. In other words, it is to improve the network utility: the network lifetime of a unit node. So, the optimization strategy of the basic network effi...

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Section: Related Workmentioning

confidence: 99%

A Green TDMA Scheduling Algorithm for Prolonging Lifetime in Wireless Sensor Networks

Long

Dong

Ota

et al. 2017

IEEE Systems Journal

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“…Ngo and Li [8] proposed an approach based on a modified GA called genetic-fix. They formulate the problem based on a within-two-hop connectivity matrix and proposed a centralized scheduling algorithm using a modified genetic-fix algorithm.…”

Section: Copyright C 2006-2013 By Ccc Publicationsmentioning

confidence: 99%

Broadcast Scheduling Problem in TDMA Ad Hoc Networks using Immune Genetic Algorithm

Arivudainambi

Rekha

2012

INT J COMPUT COMMUN

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Abstract:In this paper, a new efficient immune genetic algorithm (IGA) is proposed for broadcast scheduling problem in TDMA Ad hoc network. Broadcast scheduling is a primary issue in wireless ad hoc networks. The objective of a broadcast schedule is to deliver a message from a given source to all other nodes in a minimum amount of time. Broadcast scheduling avoids packet collisions by allowing the nodes transmission that does not make interference of a time division multiple access (TDMA) ad hoc network. It also improves the transmission utilization by assigning one transmission time slot to one or more non-conflicting nodes such a way that every node transmits at least once in each TDMA frame. An optimum transmission schedule could minimize the length of a TDMA frame while maximizing the total number of transmissions. The aim of this paper is to increase the number of transmissions in fixed Ad hoc network with time division multiple access (TDMA) method, with in a reduced time slot. The results of IGA are compared to the recently reported algorithms. The simulation result indicates that IGA performs better even for a larger network.

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“…Several approximate algorithms have been proposed in the TDMA scheduling problem, including broadcast scheduling [12]- [14] and link scheduling [7]- [10]. Broadcast and link scheduling are time slot assignments to nodes and links, respectively.…”

Section: Related Workmentioning

confidence: 99%

Energy Efficient TDMA Sleep Scheduling in Wireless Sensor Networks

Lou

et al. 2009

Ieee Infocom 2009

129

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Abstract-Sleep scheduling is a widely used mechanism in wireless sensor networks (WSNs) to reduce the energy consumption since it can save the energy wastage caused by the idle listening state. In a traditional sleep scheduling, however, sensors have to start up numerous times in a period, and thus consume extra energy due to the state transitions. The objective of this paper is to design an energy efficient sleep scheduling for low data-rate WSNs, where sensors not only consume different amounts of energy in different states (transmit, receive, idle and sleep), but also consume energy for state transitions. We use TDMA as the MAC layer protocol, because it has the advantages of avoiding collisions, idle listening and overhearing. We first propose a novel interference-free TDMA sleep scheduling problem called contiguous link scheduling, which assigns sensors with consecutive time slots to reduce the frequency of state transitions. To tackle this problem, we then present efficient centralized and distributed algorithms that use time slots at most a constant factor of the optimum. The simulation studies corroborate the theoretical results, and show the efficiency of our proposed algorithms.

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Centralized broadcast scheduling in packet radio networks via genetic-fix algorithms

Cited by 47 publications

References 5 publications

A Green TDMA Scheduling Algorithm for Prolonging Lifetime in Wireless Sensor Networks

A Green TDMA Scheduling Algorithm for Prolonging Lifetime in Wireless Sensor Networks

Broadcast Scheduling Problem in TDMA Ad Hoc Networks using Immune Genetic Algorithm

Energy Efficient TDMA Sleep Scheduling in Wireless Sensor Networks

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