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...

the aim of this paper is to assess the adaptation of iran’s energy policies to the kyoto protocol. in the past two decades, iran has experienced a considerable increase in greenhouse gas (ghg) emissions; in 2013 it was the world’s ninth largest emitter. although adapting to this protocol in iran’s energy and climate policies seems vital and urgent, its recent status is not promising. this paper...

this study aims to delve into the unobservable dimensions of deciding and acting in a pragmatically significant speech event. utilizing a discourse completion test questionnaire, it seeks to find out the structure and pragmatic functions that lie behind efl learners’ choice of specific wording while engaged in performing a recurrent speech act in iran i.e. compliments. to this aim, 30 efl learn...

This paper presents the design and analysis of a media access protocol implemented in Lightning, an optical WDM network testbed that has been designed for high-performance supercomputer interconnection. The architecture is based on a dynamically reconfigurable hierarchical WDM network to interconnect a large number of supercomputers and create a distributed shared memory (DSM) environment. This...

This paper considers an enhancement to the arrow distributed directory protocol, introduced in [8]. The arrow protocol implements a directory service, allowing nodes to locate mobile objects in a distributed system, while ensuring mutual exclusion in the presence of concurrent requests. The arrow protocol makes use of a minimum spanning tree Tm of the network, selected during system initializat...

We propose a combined multicast routing and resource reservation protocol, termed ReservationBased Multicast (RBM), that performs routing in a fashion similar to Protocol Independent Multicast (PIM), but which is intended for mobile operation and routes hierarchically-encoded data streams based on user-specified fidelity requirements, real-time delivery thresholds and prevailing network bandwid...

As technological advances are made in software and hardware, the feasibility of accessing information "any time, anywhere" is becoming a reality. In a mobile computing environment, a potentially large number of mobile and fixed users may simultaneously access shared data; . In this paper, we have addressed the problem and devised an effective OCC protocol with deferred adjustment of serializati...

In this paper we present and evaluate a hybrid-modular multiple access protocol for ATM transmission in a multiservice satellite system. Given appropriate synchronization and Doppler (shift) compensation, the protocol components can cope with the dynamics of the satellite constellation and are suitable to both mobile and fixed user environments. The general protocol framework is first given wit...

Backround: Cardiopulmonary exercise testing (CPET) has become increasingly important as a routine procedure in daily clinical work. So far, it is generally accepted that an individualized exercise protocol with exercise duration of 6 to 12 minutes is preferable to assess maximal exercise performance. The aim of this study was to compare an individualized NYHA adapted exercise protocol with a fi...

We propose a combined multicast routing and resource reservation protocol, termed ReservationBased Multicast (RBM), that performs routing in a fashion similar to Protocol Independent Multicast (PIM), but which is intended for mobile operation and routes hierarchically-encoded data streams based on user-specified fidelity requirements, real-time delivery thresholds and prevailing network bandwid...