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首页> 外文期刊>IEEE Transactions on Communications >Taking Full Advantage of Multiuser Diversity in Mobile Ad Hoc Networks
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Taking Full Advantage of Multiuser Diversity in Mobile Ad Hoc Networks

机译：在移动自组织网络中充分利用多用户多样性

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摘要

Multiuser diversity has been shown to increase the throughput of mobile ad hoc wireless networks (MANETs) when compared to fixed wireless networks. This paper addresses a multiuser diversity strategy that permits one of multiple one-time relays to deliver a packet to its destination. We show that the $Theta(1)$ throughput of the original single one-time relay strategy is preserved by our multi-copy technique. The reason behind achieving the same asymptotic throughput is the fact that, as we demonstrate in this paper, interference for communicating among closest neighbors is bounded for different channel path losses, even when $n$ goes to infinity. We show that a significant delay reduction is possible by multi-copy relaying when $n$ is finite. Furthermore, we find that the average delay and delay variance for both the one and multi-copy relay strategies scale like $Theta(n)$ and $Theta(n^{2})$, respectively. We derive an approximation of the delay for multi-copy forwarding scheme and demonstrate that this approximation is very close to simulation results in MANET systems.
机译：与固定无线网络相比，多用户分集已显示出增加了移动自组织无线网络（MANET）的吞吐量。本文提出了一种多用户分集策略，该策略允许多个一次性中继之一将数据包传递到其目的地。我们显示，原始的单次中继策略的$ Theta（1）$吞吐量通过我们的多副本技术得以保留。达到相同渐近吞吐量的原因是，正如我们在本文中所证明的那样，即使$ n $变为无穷大，最近邻居之间通信的干扰也会受到不同信道路径损耗的限制。我们表明，当$ n $是有限的时，通过多副本中继可以显着减少延迟。此外，我们发现，单复制和多复制中继策略的平均延迟和延迟方差分别标为$ Theta（n）$和$ Theta（n ^ {2}）$。我们推导了多副本转发方案的延迟近似值，并证明了该近似值与MANET系统中的仿真结果非常接近。

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