quorum-based power saving (qps) protocols allow “asynchronous” wireless hosts, operating in a multi-hop ad-hoc network, to tune to the low power mode conceived in ieee 802.11 mac standard. qps schemes guarantee that the wake-up schedule for every two neighboring hosts would ultimately overlap within a bounded latency so as to be able to accomplish their reciprocal “unicast” communications. a ma...

Terminal paging is a procedure to locate a called mobile host (MH), which registered only approximated location information. The paging aims to reduce signalling overhead and power consumption in the MH. Recently, IP paging protocol has been widely designed for the terminal paging in IP-based mobile networks. However, since any power save mechanism is not supported in IP layer by itself, it is ...

Previous works in IEEE 802.16e power saving mainly focused on standard Type I or Type II power saving class. The limitation of adopting Type I or Type II was discussed in our previous work, and the idea of applying traffic modeling and measurement called Load-Based Power Saving (LBPS) was proposed. The base station in LBPS measures the traffic load and estimates the sleep window size for mobile...

Recently, IEEE 802.11 wireless networks have been widely deployed in public areas for mobile Internet services. In the public wireless LAN systems, paging function is necessary to support various advanced services (e.g. Voice over IP and message applications) and to provide efficient power management scheme. In next-generation mobile networks, the so-called all-IP networks, the paging function ...

A new alternative is proposed for reducing the power consumption of the portable (battery-powered) units operating in a mobile packet-data network. First, a short review of the current power-saving protocols is taking place. It is shown that the most common means for conserving power is the intermittent operation of the receivers (at the portable units) and a central administration authority th...

Technological advancements made major research challenges in the area of wireless sensor network. Power saving is the foremost criteria in this field. Consumption of energy is considerably reduced on properly designed protocol. This paper focuses on energy aware fuzzy based routing protocol. Protocol based on fuzzy logic computation reduces power consumption by the ratio of 10 when compared to ...

In this paper, an IEEE 802.15.6 wireless body area networks (WBAN) medium access control protocol is developed to support a wireless USB (WUSB) application as a protocol adaptation layer (PAL). Due to portable and wearable nature, the WUSB over IEEE 802.15.6 hierarchical medium access control (MAC) protocol has to support the power saving operation and integrate WUSB transactions with WBAN traf...

This paper presents the theoretical analysis of a downlink MAC protocol, which features power-saving characteristics and has been previously proposed [3], [7] for implementation in mobile data networks. The main objective of the protocol is to conserve valuable battery energy at the portable terminals of a wireless network. To accomplish this, the terminals employ discontinuous reception, i.e.,...

In this paper, we develop a green handover protocol in two-tier OFDMA macrocell-femtocell networks. To improve the energy efficiency of femtocell base station, the proposed green handover protocol can intelligently switch on its radio communication and associated processing, or called as “wake up” from the idle mode, if the remainder data of a mobile host can be completely uploaded through the ...