ABSTRACT
The Wireless Sensor Networks (WSNs) have advanced to the multimedia processing and streaming applications in the
recent past with the advent of higher end motes like the iMote2. The data rates available from the radios of the WSN
nodes are low so that for streaming applications to be sustained in these networks, special cares have to be taken to allow
only one streaming path in any node’s neighborhood, which means in a common sink network, all the protocol layers in
the nodes are optimized for maintaining a single streaming path in the network at any point of time. In a dense WSN, for
single path optimized streaming for maximum throughput, the MAC and routing layers have to be specially designed to
avoid traffic generation from nodes in the vicinity of an ongoing streaming path. In this paper, a routing protocol is
described which is built on top of a streaming MAC protocol called MLMAC. The Single-path Streaming Optimized
Routing Protocol (SPSORP) establishes the routing table during the initialization phase of the protocol and suspends the
route updates when streaming is detected in the vicinity of a node. The simulation in OMNeT++ simulator confirms the
possibility of streaming in a dense WSN with the combination of MLMAC and SPSORD to the tune of compressed voice
streaming rates with iMote2 hardware platform.
Keywords: - Multihop Routing, QoS, real-time, Streaming, Wireless Multimedeia Sensor Networks,
Wireless Sensor Networks