نتایج جستجو برای: power saving protocol

تعداد نتایج: 752181  

2004
Daniel de Oliveira Cunha Luís Henrique Maciel Kosmalski Costa Otto Carlos Muniz Bandeira Duarte

This paper analyzes the energy consumption of ad hoc nodes using IEEE 802.11 interfaces. Our objective is to provide theoretical limits on the lifetime gains that can be achieved by different power saving techniques proposed in the literature. The evaluation takes into account the properties of the medium access protocol and the process of forv^arding packets in ad hoc mode. The key point is to...

Journal: :Microprocessors and Microsystems 2004
Yu-Chee Tseng Ten-Yueng Hsieh

A mobile ad hoc network (MANET) is one consisting of a set of mobile hosts which can operate independently without infrastructure base stations. Power saving is a critical issue for MANET since most mobile hosts will be operated by battery power. In this paper, we propose an architecture for power-saving communications in an IEEE 802.11-based MANETs. Our solutions are derived by exploiting the ...

2005
Matthew J. Miller Cigdem Sengul

Efficient information dissemination is essential for the operation of sensor networks. However, one of the challenges to efficient information dissemination arises from only a random subset of nodes being active in any given time. This is mainly due to sensor networks employing power-saving techniques to compensate the energy constraints of sensor nodes. Specifically, significant delay is incur...

Journal: :Computer Networks 2008
Shih-Chang Huang Rong-Hong Jan Wuu Yang

SCPS is a novel self-configuring power-saving protocol for wireless one-hop ad hoc networks. According to IEEE 802.11 WLAN standard, a station may enter a special power-saving (PS) mode. SCPS allows all stations in the PS mode to adjust their wakeup schedules whenever a station enters or exits the PS mode. The adjustment can balance the number of wakeup stations in each beacon interval so that ...

2006
YE MING HUA

In IEEE 802.11 Power Saving (PS) mode specified for Independent Basic Service Set (IBSS), mobile stations announce their pending data packets within Announcement Traffic Indication Message (ATIM) window immediately after the reception of Time Synchronization Function (TSF) beacon. This paper proposed modifications to the PS mode by transmitting the TSF beacon at the end of each ATIM window. Upo...

Journal: :IJWMC 2012
Sofiane Hamrioui Mustapha Lalam Pascal Lorenz

One of the critical issues in Mobile Ad hoc Network (MANET) is the energy efficiency. The challenge is how to extend the limited lifetime of energy in mobile nodes. We proposed a new approach to minimise the energy consumption called EM-OLSR (Energy Efficiency in MANET by improving OLSR protocol). EM-OLSR is based on the OLSR routing protocol and adds a new energy fairness parameter to the Mult...

Journal: :EURASIP J. Adv. Sig. Proc. 2012
Salvatore D'Alessandro Andrea M. Tonello

In this article, we investigate the use of half duplex time division relay protocols to possibly provide achievable rate improvements, power saving, and coverage extension in home power line communication (PLC) networks. We consider a network where the communication between the source and the destination nodes follows an opportunistic protocol, namely, the relay is used whenever it allows with ...

2013
R. Sujitha D. Sharmila G. Rajkumar

-Mobile Ad hoc Network is a compilation of wireless mobile terminals that are in contact with each other in the absence of a permanent infrastructure network. This gives a irregular formation. Many resources like power, energy, reliable data delivery and end to end delay plays a significant role in the network. But due to the dynamic movement of nodes, power management and energy conservation s...

2014
Shrikant Upadhyay Aditi Upadhyay Pankaj Joshi

93 | P a g e F e b r u a r y 4 , 2 0 1 4 Power Saving Long Backup Battery Model Analysis for Mobile Ad-Hoc Network Using Different Routing Protocols Shrikant Upadhyay, Aditi Upadhyay and Pankaj Joshi Cambridge Institute of Technology, Ranchi-835103, Jharkhand, India [email protected] Dehradun Institute of Technology (University), Dehradun-248002, Uttarakhand, India aditi.jsr.dc2010@gmail....

2014
WEN-CHUAN HUANG

IEEE 802.16 is a novel broadband wireless access standard. Quality of service (QoS) guarantee and power saving are two important factor in IEEE 802.16 standard. Unsolicited grant service (UGS) is a constant bit rate QoS service and is defined in IEEE 802.16 standard. Power saving classes of type II (PSCs-II) is provided in IEEE 802.16 standard for repeat fixed active and sleep frames. However, ...

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