It is our great pleasure to present you the proceeding of the 32 edition of the IEEE International Performance Computing and Communications Conference, held December 6th 8th, 2013 in San Diego, California, Unite States. The conference provided a forum for the exchange of ideas and results among researchers, developers, and practitioners working in all aspects of performance of computer and comm...

social incentives that bring them into existence and sustain them in the course of time. Non-governmental organizations (NGOs), whether based in the global north or south, are not different. Unfortunately, numerous NGOs start up and then fail, because the passion of the founder is not supported by a sustainable organization Volunteers in all sectors are working with NGOs. The NGOs are citizen...

This paper investigates the Multi-band OFDM (MB-OFDM) based physical (PHY) layer proposal for IEEE 802.15.3a working group on short-range high data-rate Ultra-wide-Band (UWB) communications. An overview of the MB-OFDM PHY layer architecture with its various parameters is presented and the optimal choice of critical parameters is discussed. Next, we derive the theoretical un-coded Bit Error Rate...

In the performance evaluation of a protocol for an ad hoc network, the protocol should be tested under realistic conditions including, but not limited to, a sensible transmission range, limited buffer space for the storage of messages, representative data traffic models, and realistic movements of the mobile users (i.e., a mobility model). This paper is a survey of mobility models that are used...

Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet-Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as refer...

in this paper, we consider a cooperative cognitive radio network in which there is an ofdm primary link and multiple single carrier secondary links.the primary link is required to maintain its secrecy rate above a predefined threshold. if the secrecy rate requirement is not satisfied, the secondary system help primary link to maintain its secrecy rate requirement. in doing so, the secondary trans...

Successive waves of COVID-19 have altered opinions and working practices. We conducted a survey in early 2020 among 759 members the medical communications community, recruited via our network, seeking their experiences, opinions, insights. The was repeated 13 months later (N=925 respondents) using similar methodology. In both surveys respondents had generally positive attitude to home appreciat...

Introduction:     women's  employment  is one of the fundamental problems in breastfeeding. Studies have shown that after delivery, amount of milk is  equal in the mothers working and non-working. But  after several   months will be reduced markedly. Methods: In this study, with different departments was done coordination , and interviewed with the 351 mothers that had children under two years...

We report efficient white upconversion luminescence in Yb(3+)-, Er(3+)- and Tm(3+)-doped monophasic and biphasic Y(2)BaZnO(5) phosphors under 977 nm near-infrared excitation and at low excitation power densities (down to ∼25 mW mm(-2)).