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Capacity of Hybrid Wireless Networks With Long-Range Social Contacts Behavior

机译:具有远程社交联系行为的混合无线网络的容量

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Hybrid wireless network is composed of both ad hoc transmissions and cellular transmissions. Under the L -maximum-hop routing policy, flow is transmitted in the ad hoc mode if its source and destination are within L hops away; otherwise, it is transmitted in the cellular mode. Existing works study the hybrid wireless network capacity as a function of L so as to find the optimal L to maximize the network capacity. In this paper, we consider two more factors: traffic model and base station access mode. Different from existing works, which only consider the uniform traffic model, we consider a traffic model with social behavior. We study the impact of traffic model on the optimal routing policy. Moreover, we consider two different access modes: one-hop access (each node directly communicates with base station) and multi-hop access (node may access base station through multiple hops due to power constraint). We study the impact of access mode on the optimal routing policy. Our results show that: 1) the optimal L does not only depend on traffic pattern, but also the access mode; 2) one-hop access provides higher network capacity than multi-hop access at the cost of increasing transmitting power; and 3) under the one-hop access mode, network capacity grows linearly with the number of base stations; however, it does not hold with the multi-hop access mode, and the number of base stations has different effects on network capacity for different traffic models.
机译:混合无线网络由ad hoc传输和蜂窝传输组成。在L最大跳路由策略下,如果流的源和目的地在L跳以内,则以ad hoc模式传输流。否则,以蜂窝模式发送。现有工作研究混合无线网络容量与L的关系,以找到最佳L来最大化网络容量。在本文中,我们考虑了另外两个因素:流量模型和基站访问模式。与仅考虑统一交通模型的现有作品不同,我们考虑具有社会行为的交通模型。我们研究了流量模型对最佳路由策略的影响。此外,我们考虑两种不同的访问模式:单跳​​访问(每个节点直接与基站通信)和多跳访问(由于功率限制,节点可以通过多跳访问基站)。我们研究了访问模式对最佳路由策略的影响。我们的结果表明:1)最优L不仅取决于流量模式,还取决于访问模式; 2)单跳访问比多跳访问提供更高的网络容量,但以增加发射功率为代价; 3)在单跳接入模式下,网络容量随基站数量线性增长;但是,它不适用于多跳访问模式,并且基站数量对不同流量模型的网络容量有不同的影响。

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