Dynamic Source Routing (DSR) is a self-maintaining routing protocol for wireless networks. The protocol can also function with cellular telephone systems and mobile networks with up to about 200 nodes. A Dynamic Source Routing network can configure and organize itself independently of oversight by human administrators.
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In Dynamic Source Routing, each source determines the route to be used in transmitting its packets to selected destinations. There are two main components, called Route Discovery and Route Maintenance. Route Discovery determines the optimum path for a transmission between a given source and destination. Route Maintenance ensures that the transmission path remains optimum and loop-free as network conditions change, even if this requires changing the route during a transmission.
Microsoft has developed a version of Dynamic Source Routing known as Link Quality Source Routing (LQSR) specifically for use with their Mesh Connectivity Layer (MCL) technology. MCL facilitates the interconnection of computers into a wireless mesh network using WiFi or WiMax services.