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RP-CDMA is a wireless multiple access protocol that utilizes multiple spreading codes and a multiple packet receiver to enhance link reliability and performance. The authors apply RP-CDMA to a multi-hop wireless ad hoc network and propose two significant extensions aimed at improving throughput and reliability. Their simulations confirm that RP-CDMA can substantially improve link reliability and network performance, but that a link level acknowledgement protocol is required to ensure packet delivery across the network. They investigate a simple acknowledgement policy and conclude that it enables simultaneous high throughput and packet delivery while maintaining low latency.
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