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首页> 外文期刊>International Journal of Distributed Sensor Networks >HGL: A hybrid global-local load balancing routing scheme for the Internet of Things through satellite networks
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HGL: A hybrid global-local load balancing routing scheme for the Internet of Things through satellite networks

机译：HGL：通过卫星网络的物联网混合全球-本地负载平衡路由方案

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摘要

Satellite networks provide complete connectivity and worldwide data transmission capability for constructing the Internet of Things. However, because of the varying Internet of Things traffic density, satellite networks may endure imbalanced traffic requirements and frequent link congestion. To effectively resolve these problems and optimally transmit Internet of Things data, a novel hybrid global-local load balancing routing scheme for Low Earth Orbit satellite networks is proposed in this article. Hybrid global-local load balancing routing scheme enables satellites to route Internet of Things traffic through global planning and local real-time adjustments in two steps. In hybrid global-local load balancing routing scheme, given the predictive nature of Internet of Things traffic distribution and Low Earth Orbit satellite networks, the inter-satellite traffic demand is decomposed into a predictable long-range baseline and unpredictable short-range fluctuations. A global strategy is employed first for preliminary global traffic allocation based on long-range baselines, and a local strategy is then employed for route adjustments based on short-range fluctuations. With the combination of global planning and local real-time adjustments, network traffic can eventually obtain a near-optimal allocation. Numerical simulations indicate that in contrast to single-strategy schemes, hybrid global-local load balancing routing scheme can more thoroughly eliminate congestion, and it performs better in measures such as packet loss rate, average queuing delay, traffic distribution, route oscillation, and communication overhead.
机译：卫星网络为构建物联网提供了完整的连接性和全球数据传输能力。但是，由于物联网流量密度的变化，卫星网络可能会承受不平衡的流量需求和频繁的链路拥塞。为了有效解决这些问题并优化传输物联网数据，本文提出了一种针对低地球轨道卫星网络的新型混合全球-本地负载均衡路由方案。混合的全球-本地负载平衡路由方案使卫星能够通过全局规划和本地实时调整分两个步骤来路由物联网流量。在混合的全球-本地负载平衡路由方案中，鉴于物联网流量分布和低地球轨道卫星网络的可预测性，卫星间的流量需求被分解为可预测的远程基线和不可预测的短期波动。首先采用全局策略对基于远程基线的全局流量进行初步分配，然后采用局部策略对基于短期波动的路由进行调整。通过全局规划和本地实时调整的组合，网络流量最终可以获得接近最佳的分配。数值模拟表明，与单策略方案相比，全局-本地混合负载均衡路由方案可以更彻底地消除拥塞，并且在丢包率，平均排队延迟，流量分配，路由振荡和通信等方面表现更好。高架。

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