The recent progress in nanotechnologies is giving birth to a novel topology of wireless networks characterized by a high local density and an intensive node instability such as in WBAN and swarm micro-robots systems.

In this paper, we show that classical and dedicated ad hoc nanonetwork routing solutions are inefficient in this case and present a low reliability level and add a supplementary delay and control traffic. Majority of these solutions are based on point to point relaying mode, which is not adapted to the instability context.

The multirelay to multirelay approaches allow countering the problem of nanonodes uncertainty by using the high number of inter-node connections. However, these approaches perform badly when the nanonetwork deployment presents distortions and concave sides. We propose a new routing protocol called Multirelay to Multirelay Routing Protocol (M2MRPv2), which provides a natural way to manage the residual energy levels on the nanonodes. M2MRPv2 is, to the best of our knowledge, the only approach that proposes a proactive multirelay to multirelay routing mode where the residual energy level of the nanonodes and reliability of the routing paths are taken into account.

We study the performances of multirelay to multirelay protocols according to different multi-source to multi-sink communication scenarios. The obtained results show that M2MRPv2 protocol outperforms by far the Sustainable Longevity Routing (SLR) protocol (the reference protocol for Terahertz nanonetworks) in terms of transmission reliability and energy management. This outperformance is accentuated when the Terahertz nanonetwork deployment presents many concavities.

纳米技术的最新进展催生了一种新型的无线网络拓扑，其特征是高局部密度和密集的节点不稳定性，例如在WBAN和群体微型机器人系统中。

在本文中，我们证明了传统的专用Ad hoc纳米网络路由解决方案在这种情况下效率低下，并且可靠性水平较低，并增加了补充延迟和控制流量。这些解决方案中的大多数都基于点对点中继模式，该模式不适用于不稳定环境。

多中继到多中继的方法允许通过使用大量的节点间连接来解决纳米节点不确定性的问题。但是，当纳米网络部署出现变形和凹面时，这些方法的效果会很差。我们提出了一种新的路由协议，称为多中继到多中继路由协议（M2MRPv2），它提供了一种自然的方式来管理纳米节点上的剩余能量水平。据我们所知，M2MRPv2是提出主动多中继到多中继路由模式的唯一方法，其中考虑了纳米节点的剩余能量水平和路由路径的可靠性。

我们根据不同的多源到多接收器通信场景研究了多中继到多中继协议的性能。获得的结果表明，就传输可靠性和能量管理而言，M2MRPv2协议的性能远远超过了可持续长寿路由（SLR）协议（太赫兹纳米网络的参考协议）。当太赫兹纳米网络的部署呈现出许多凹痕时，这种出色的性能就更加突出。