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Load Balancing Hashing for Geographic Hash Tables (Rapporti tecnici/preprint/working paper)

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Load Balancing Hashing for Geographic Hash Tables (Rapporti tecnici/preprint/working paper) (literal)

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Renda M. E.; Resta G.; Santi P. (2010)
Load Balancing Hashing for Geographic Hash Tables
(literal)

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ABSTRACT: In this paper, we address the problem of balancing the network traffic load generated when querying a geographic hash table. State-of-the-art approaches can be used to improve load balancing by changing the underlying geo-routing protocol used to forward queries in the geographic hash table. However, this comes at the expense of considerably complicating the routing process, which no longer occurs along (near) straightline trajectories, but requires computing complex geometric transformations. Thus, current load balancing approaches are impractical in application scenarios where the nodes composing the geographic hash table have limited computational power, such as in most wireless sensor networks. In this paper, we propose a novel approach to solve the traffic load balancing problem in geographic hash tables: instead of changing the (near) straight-line geo-routing protocol used to send a query from the node issuing the query (the source) to the node managing the queried key (literal)

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