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Existing work has shown that random coding across multicast sessions can significantly reduce system delay. However, such a scheme requires the strong assumption that each source has priori information of other sources' messages. The broadcasting nature of radio propagation can provide an opportunity to realize collaboration across sessions without causing much system overhead. In this paper, we propose...
Most ad hoc mobile devices in wireless networks operate on batteries and power consumption is therefore an important issue for wireless network design. In this paper, we propose and investigate a new distributed cooperative routing algorithm that realizes minimum power transmission for each composed cooperative link, given the link BER (bit error rate) constrained at a certain target level. The key...
Recently cooperative diversity has received a lot of attention as an effective and low-cost technique to combat multipath fading and enhance transmission reliability. However, many existing cooperative protocols suffer some loss of ergodic capacity due to the extra bandwidth resource consumed by relay transmission. Motivated by such a fact, network coding, a technique well known for its capability...
In this paper, a quality-of-service driven routing protocol is proposed for wireless cooperative networks. The key contribution of the proposed protocol is to bring the performance gain of cooperative diversity from the physical layer up to the networking layer. Specifically, the proposed protocol uses a distributed algorithm to select the best relays based on link quality to form cooperative links...
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