Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/47518
Title: Efficient Data Dissemination and Collection Protocols for Wireless Sensor Networks
Authors: MANJUNATH DODDAVENKATAPPA
Keywords: wireless sensor networks, data dissemination, data collection, pipelining, channel diversity, node diversity, constructive interference
Issue Date: 15-Jul-2013
Source: MANJUNATH DODDAVENKATAPPA (2013-07-15). Efficient Data Dissemination and Collection Protocols for Wireless Sensor Networks. ScholarBank@NUS Repository.
Abstract: Dissemination and collection of large amounts of data are two fundamental services required in wireless sensor networks. Despite almost a decade of research, existing large data dissemination and collection protocols still take long completion times and consume a significant amount of energy. This is due to the effects of various issues: contention overhead, intra- and inter-flow interferences, external interference, link asymmetry, varying channel conditions, channels-quality differences, and/or energy-intensive requirements such as packet overhearing. In this work, we effectively handle these issues by exploiting constructive interference and channel diversity, in addition to using various techniques such as exploiting transmission density diversity and node diversity, XOR coding, channel cycling, etc. This leads us to make three important contributions, which constitute this dissertation: (1) We design and implement Splash, a data dissemination protocol that is more than an order of magnitude faster than state-of-the-art dissemination protocols. (2) We propose a new approach that allows data collection protocols to exploit long-range communication links of intermediate quality (IQ) through channel diversity with a new protocol, called ILTP (IQ Link Transformation Protocol), which does not require an energy-intensive operation of packet overhearing. (3) We design and implement PCube (Practical Packet Pipeline), a high-throughput data collection protocol that on average utilizes 84.2% of the effective data rate of the underlying de facto standard CC2420 radio, whereas average utilization for the state-of-the-art high-throughput protocol is only 16.2%.
URI: http://scholarbank.nus.edu.sg/handle/10635/47518
Appears in Collections:Ph.D Theses (Open)

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