Date Added: Oct 2010
In Delay Tolerant Networks (DTNs), information search is an important topic, which has not been widely investigated yet. Recently, pervasive and ubiquitous computing scenarios are pushing situations where it is the recipient (instead of the sender) who determines whether and how to seize data flowing in the network. Most existing information search schemes only focus on publish-subscribe paradigm or consider query and response separately, which are all in the form of hop-by-hop. In this paper, the authors propose DelQue, a novel socially-aware onehop delegation query scheme considering query and response integratedly. DelQue does not require the selected relays to forward query to other users, thus the network overhead can be lowered and source can ensure system performance with only local knowledge.