0140-3664/$ see front matter 2011 Elsevier B.V. A doi:10.1016/j.comcom.2011.10.003 ⇑ Corresponding author. Tel.: +39 080 5963301; fax E-mail addresses: [email protected] (G. Piro), a.gr [email protected] (G. Boggia), [email protected] (P. 1 Note that HCF was initially introduced by 802.11e [2]. Now, this amendment has been integrated in the l The Hybrid Coordination Function is a very powerful ...

0140-3664/$ see front matter 2010 Elsevier B.V. A doi:10.1016/j.comcom.2010.01.003 * Corresponding author. Tel.: +55 24 2233 6199 E-mail address: [email protected] (A. Ziviani). This paper investigates proactive data dissemination and storage schemes for wireless sensor networks (WSNs) with mobile sinks. The focus is on schemes that do not impose any restrictions on the sink’s mobility pattern. T...

0140-3664/$ see front matter 2009 Elsevier B.V. A doi:10.1016/j.comcom.2009.10.014 * Corresponding author. Tel.: +34 916248803. E-mail addresses: [email protected] (A. de la Oliv [email protected] (A. García-Martínez), [email protected] @it.uc3m.es (A. Azcorra). 1 http://www.ietf.org/html.charters/SHIM6-charter.h This paper characterizes analytically the performance of REAchability Protocol (REAP),...

0140-3664/$ see front matter 2008 Elsevier B.V. A doi:10.1016/j.comcom.2008.09.015 * Corresponding author. E-mail addresses: [email protected] (N.A. Ali), prati [email protected] (H. Hassanein). The IEEE 802.16 standard defines the specifications for medium access control (MAC) and physical (PHY) layers of WiMAX networks. A critical part of the MAC layer specification is packet scheduling, wh...

0140-3664/$ see front matter 2010 Published by doi:10.1016/j.comcom.2010.04.044 * Corresponding author at: Department of Comput Hong Kong, Hong Kong SAR, China. Tel.: +852 219420 E-mail addresses: [email protected] (C. Xu), tengj@ [email protected] (W. Jia). Nowadays, 802.11-based wireless networks have gained greater popularity as they cover more schools, restaurants, offices, and cities. Un...

0140-3664/$ see front matter 2009 Elsevier B.V. A doi:10.1016/j.comcom.2008.12.036 * Corresponding author. Tel.: +86 10 62282127. E-mail address: [email protected] (Y. Ji). This paper investigates least-cost QoS multicast routing problem in IP/DWDM optical networks, and proposes an improved evolutionary algorithm (AEQEA). Based on quantum-inspired evolutionary algorithm (QEA) with quantum rotatio...

0140-3664/$ see front matter 2010 Elsevier B.V. A doi:10.1016/j.comcom.2010.06.002 * Corresponding author at: State Key Laboratory fo Nanjing University, Nanjing 210093, PR China. Tel.: + 83686757. E-mail address: [email protected] (W. Li). Data caching has been shown to be efficient in reducing network bandwidth consumption and accelerating information access. In a caching system, an impor...

0140-3664/$ see front matter 2012 Elsevier B.V. A http://dx.doi.org/10.1016/j.comcom.2012.03.014 ⇑ Corresponding author. Tel.: +82 2880 8434; fax: + E-mail addresses: [email protected] (W. Pak 1 Part of this paper was presented at IEEE PIMRC’09 Although various medium access control (MAC) and routing protocols have been designed for WSNs (wireless sensor networks) to extend the network lif...

0140-3664/$ see front matter 2011 Elsevier B.V. A doi:10.1016/j.comcom.2011.11.016 ⇑ Corresponding author. Tel.: +82 2 880 9105; fax: E-mail addresses: [email protected] (D nu.ac.kr (K. Cho), [email protected] (T.‘‘Taekyoung’’ Kwon), [email protected] (Y. Choi). In wireless sensor networks, many communication protocols and applications rely on flooding for various networking ...