In wireless multi-hop networks having multiple gateways to an external wired network, a host should select its connected gateway when it would like to communicate with an outside host. One possible and simple way is minimum hop gateway selection policy. In our previous study, we have already revealed that when the minimum hop gateway is selected, imbalance of traffic distribution in a network causes significant performance degradation. Wireless communication channel around the gateway is very important resource because all the external traffic goes through the gateway. So, in our previous work, we proposed load-balancing gateway selection, which takes account of not only traffic intensity at a gateway but also interference of wireless channel around a gateway. With a simple scenario, we showed that our proposed method improves gateway throughput performance. In this paper, we evaluate our proposed method with more sophisticated model and show that it improves throughput performance of load-concentrated gateway. We also show that it surprisingly improves throughput performance of not-load-concentrated gateway, i.e., this gateway obtains more throughput even though the number of its connected hosts is increased when our proposed method is applied. Our performance evaluation in this paper newly reveals that our proposed gateway selection method improves total network throughput by significantly reducing generated control packets for route error recovery.
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机译：在具有到外部有线网络的多个网关的无线多跳网络中，主机应在与外部主机通信时选择其连接的网关。一种可能和简单的方法是最小跳网选拔策略。 In our previous study, we have already revealed that when the minimum hop gateway is selected, imbalance of traffic distribution in a network causes significant performance degradation.网关周围的无线通信通道是非常重要的资源，因为所有外部流量都通过网关。因此，在我们以前的工作中，我们提出了负载平衡网关选择，这不仅考虑了网关的流量强度，还考虑了网关周围的无线信道的干扰。通过简单的场景，我们表明我们的提出方法提高了网关吞吐量性能。在本文中，我们用更复杂的模型评估我们提出的方法，并表明它提高了负载集中网关的吞吐量性能。我们还表明，它令人惊讶地提高了不加载集中网关的吞吐量性能，即，即使在应用我们的建议方法时，该网关即使在连接的主机的数量增加时也会获得更多吞吐量。我们本文的绩效评估新闻详细揭示了我们所提出的网关选择方法通过显着减少生成的控制数据包来提高网络吞吐量，以便进行路线错误恢复。
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