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In this paper, we consider the lifetime maximization routing with network coding in wireless multihop networks. We first show that lifetime maximization with network coding is different from pure routing, throughput maximization with network coding and energy minimization with network coding. Then we formulate lifetime maximization problems in three different cases of (i) no network coding, (ii) two-way...
In this paper, we investigate the lifetime optimization for wireless multihop networks with network coding. We formulate the problems for three different cases with (i) no network coding, (ii) two-way network coding, and (iii) overhearing network coding. These problems are solved using interior-point method and the lifetime in all these cases are evaluated in random topologies with respect to power...
In this paper, we analyze and evaluate the cost-delay trade off of opportunistic network coding in a two-way relay network with asymmetric arrival rates. We first formulate the variance of the queue into a Markov chain and derive the transition probability and the stationary distribution. Then we analyze the average power cost and delay, formulate the optimal power-delay trade off, and propose a heuristic...
In this paper, we investigate optimal cross-layer design of congestion control, routing, one-hop two-way inter-commodity (OTIC) network coding and scheduling in wireless multi-hop networks utilizing the broadcast advantage of wireless medium. We first present an achievable rate region with OTIC network coding by introducing virtual flow rates in a node. Then we formulate the network utility maximization...
The total energy minimization in wireless multihop networks using two-way network coding is investigated in this paper. The problem is first formulated as a linear programming problem, then decomposed into two sub-problems using the La- grangian decomposition, and finally solved with the subgradient method. After that, the backpressure based algorithm is proposed to solve the problem in a distributed...
This paper deals with lifetime maximization for energy constrained wireless networks with inter-session network coding. The problem of lifetime maximization is first formulated, and then transformed into a linear programming problem. Using Lagrangian dual decomposition, it is further converted into a dual problem that consists of two subproblems: lifetime optimization and network optimization, and...
The lifetime maximization routing with network coding in wireless multihop networks is considered in this paper. The problems is formulated in three different cases: (i) no network coding, (ii) two-way network coding, and (iii) overhearing network coding. Flow augmenting routing (FA) is used to solve the first case, and then it is extended to FA with network coding (FANC) for the latter two. The performance...
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