A survey of locality-awareness solutions in mobile DHT systems

Structured peer-to-peer (P2P) systems showed over time a high performance to P2P users since their appearance. They are no longer restricted to wired networks but they are also applied on mobile devices in some recent researches in which the characteristics of mobility and wireless networks must be taken into account. The existing P2P protocols are experienced by the nonconsideration of the physical topology in the construction of the overlay, i.e. the overlay is not aware of its underlying physical networks which results a redundant traffic and high end-to-end latency. The solution of this problem called locality-awareness. In this paper, we discuss and compare available works on locality-awareness in DHT-Based mobile systems, mentioning its methods and advantages provided to both MANET (Mobile Ad-hoc Network) and cellular networks.