01668nas a2200253   4500000000100000008004100001260003300042100001600075700001800091700001700109700001600126700001800142700002300160700002000183700002100203700001700224700002000241245008100261856005100342300001200393490000900405520097800414020002201392       2011                            d  bSpringer Berlin / Heidelberg1 aDavide Vega1 aEsunly Medina1 aRoc Meseguer1 aDolors Royo1 aFelix Freitag1 aBeniamino Murgante1 aOsvaldo Gervasi1 aAndrés Iglesias1 aDavid Taniar1 aBernady Apduhan00aA Node Placement Heuristic to Encourage Resource Sharing in Mobile Computing  uhttp://dx.doi.org/10.1007/978-3-642-21931-3_42  a540-5550 v67843 aAdvances in wireless communication systems and mobile devices allow nomad users to participate in mobile collaborative activities. However the availability of hardware resources of the mobile devices that are participating in the collaboration process is a crucial factor that can enhance or jeopardize such activity. This paper studies how the network topology and the hardware resources distributed into a network influence the collaboration among the participants in the activities. The results obtained from simulating the strategy of resource sharing in an overlay network allowed us to observe two clear implications: (1) it is important to maximize the number of links between Desktop PC and mobile devices and (2) the mobile devices have to be placed within the network topology in the nodes with higher degree. According to these observations we have proposed an heuristic for node placement in order to maximize the cooperation level in terms of resource sharing.  a978-3-642-21930-6