有線無線混在ネットワークにおいてグループ通信機能を提供するミドルウェアの実装とその応用
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(2) "r576Ð'~s y. z. y. y. y. z. (. Java. ). (. ). Middleware for Supporting Dynamic Establishment of Multi-way Synchronization Channels in Wired-Wireless Networks Umedu Takaakiy, Keiichi Yasumotoz, Akio Nakatay and Teruo Higashinoy Graduate School of Info. Sci. & Tech., Osaka Univ., Japan Graduate School of Info. Sci., Nara Institute of Sci. & Tech., Japan y. z. In this paper, we propose a Java based middleware for group communication systems in wired-wireless networks. This middleware provides a facility of dynamic establishment of hirerarchical communication channels among agents (mobile hosts) where the channels can be established only if given conditions hold, It also provides a facility of powerful group communication based on multi-way synchronization (the mechanism that provides functions such as synchronization, data exchange, mutual exclusion and so on) over these channels. The speci
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(46) (+v0t?m ÖÈய«{Ý%¥ÕàÃÞäÆÐõV ·÷¨*Üv¥n»Ë ¨.vt ?¨Uvm8ú|t°¨N7÷¥ ¨Txv¥n ñËqÈ6Ü] à÷¢¤V·tU{Ux¥¢w0;| ¥j§¦¥nmÝåÖÈய«m°q ½¯äÇÕàÃÞäÆÐ}éÚ¨ UwmCmÕàÃØƬ«ÆqÁ ¾ÇßqÖä¶.äu¤àvvn m¾ÇßqÖä¶ÆqÁºÚxÍ ¨.vá±~¦£vnZIm°q½¯ äÇÿéÚR¨w¤ð¦¥mÕ àÃØƬ«¾ÇßqÖ䶨«Ñß·q¼Ý 䩼Ú3.|¥¢w6×vTx v¥n gfmd [1]. [3]. [4]. [6]. [7]. [8]. [9] [10]. [11]. Kortuem, G.: \Proem: A Peer-to-Peer Computing Platform for Mobile Ad-hoc Networks",Proc. of Advanced Topic Workshop Mid-. dleware for Mobile Computing, In association with IFIP/ACM Middleware 2001 Conference. [2]. [5]. (2001). Meier, R., Killijian, M.O., Cunningham, R. and Cahill, V.: \Towards Proximity Group Communication", Proc. of Advanced Topic Workshop. Middleware for Mobile Computing, In association with IFIP/ACM Middleware 2001 Conference (2001).. [12]. [13]. Y.-H. Chu, S. G. Rao, S. Seshan and H. Zhang: \Enabling Conferencing Applications on the Internet using an Overlay Multicast Architecture", Proc. of ACM SIGCOMM (2001). Y. -H. Chu, S. G. Rao and H. Zhang: \A Case. 8 −120−. for End System Multicast", Proc. of ACM SIGMETRICS (2000). D. Pendarakis, S. Shi, D. Verma and M. Waldvogel, ALMI: \An Application Level Multicast Infrastructure", Proc. of 3rd Usenix Symp. on Internet Technologies & Systems (2001). Chen, K. and Nahrstedt, K.: \E ective Location-Guided Tree Construction Algorithms for Small Multicast in MANET", Proc. of IEEE INFOCOM2002 (2002). Ko, Y.-B. and Vaidya, N.H.: \Geocasting in Mobile Ad Hoc Networks: Location-Based Multicast Algorithms", Proc. of the 2nd IEEE. Workshop on Mobile Computing Systems and Applications (WMCSA'99), pp. 101{110 (1999).. Bellavista, P., Corradi, A. and Stefanelli, C.: \Protection and Interoperability for Mobile Agents: A Secure and Open Programming Environment": IEEE Trans. on Comm. , May 2000, pp. 961{972 (2000). Bellavista, P. and Stefanelli, C.: \Mobile Agent Middleware for Mobile Computing", IEEE Computer, pp. 73{81 (2001). : \. * < 0 3+ !4 + ( =.& 0 * < !4 + # ( > =. 4$0 +: 3+ / * < !. î rÅ ÝÈr r ٠ûÁ¤ÒܵÀ¨¾Ä«²Õ{Àt ³3× Ú Java ¶À Æ", µÀ¨¸«r ôrÛ¹¯À¢Ä´£ · ý (DICOMO 2002), pp. 269{272(2002). 9Îé rÅ ÝÈr î r Ù rÇ û: \µÀ¨¾Ä«²Àt³3× ÚÞ ³¿t¢½Ä¶À ûâ", µÀ¨¸«r ôrÛ¹ ¯À¢Ä´£· ý (DICOMO 2003), pp. 757{760(2003). Å ÝÈr rø ür î r Ù rè áÈ: \µÀ¨¾Ä«²¨º®À Ð ×êù ¹¯À³¿t¢½ÄØ þãæ Æ", Ä°¼t§¦±¬, Vol. 19, No. 2, pp. 35{46 (2002). ISO : \Information Processing System, Open Systems Interconnection, LOTOS - A Formal Description Technique Based on the Temporal Ordering of Observational Behaviour", ISO 8807 (1989)..
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