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DHTs are scalable, self-organizing, and adaptive to underlying topology changes, thus being a promising infrastructure for realizing autonomic communications in distributed systems. To provide the above advantages, however, DHTs sacrifice flexibility, that is, all messages are routed by using a common algorithm in a DHT on the assumption that all participant nodes are homogeneous. In practice, nodes...
In most DHTs proposed so far, all nodes are assumed to be homogeneous, and all messages are routed using a common algorithm. In practice, however, nodes in large-scale systems might be heterogeneous with respect to their capabilities, reputations, affiliations of administrative domains, and so on, which consequently makes it preferable to distinguish the heterogeneity of participant nodes. To achieve...
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