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MADF: Mobile-assisted data forwarding for wireless data networks

机译:MADF:无线数据网络的移动辅助数据转发

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In a cellular network, if there are too many data users in a cell, data may suffer long delay, and system's quality-of-service (QoS) will degrade. Some traditional schemes such as dynamic channel-allocation scheme (DCA) will assign more channels to hot (or overloaded) cells through a central control system (CC) and the throughput increase will be upper bounded by the number of new channels assigned to the cell. In mobile-assisted data forwarding (MADF), we add an ad-hoc overlay to the fixed cellular infrastructure and special channels-called forwarding channels-are used to connect mobile units in a hot cell and its surrounding cold cells without going through the hot cell's base station. Thus, mobile units in a hot cell can forward data to other cold cells to achieve load balancing. Most of the forwarding-channel management work in MADF is done by mobile units themselves in order to relieve the load from the CC. The traffic increase in a certain cell will not be upper bounded by the number of forwarding channels. It can be more if the users in hot cell are significantly far away from one another and these users can use the same forwarding channels to forward data to different cold neighboring cells without interference. We find that, in a system using MADF, under a certain delay requirement, the throughput in a certain cell or for the whole network can be greatly improved.
机译:在蜂窝网络中,如果一个小区中的数据用户过多,则数据可能会遭受较长的延迟,并且系统的服务质量(QoS)会下降。一些传统方案,例如动态信道分配方案(DCA),将通过中央控制系统(CC)为热(或超载)小区分配更多的信道,而吞吐量的增长将受到分配给该小区的新信道数量的上限。在移动辅助数据转发(MADF)中,我们在固定的蜂窝基础结构中添加了临时覆盖,称为转发信道的特殊通道用于连接热单元及其周围的冷单元中的移动单元,而无需经过热小区的基站。因此,热单元中的移动单元可以将数据转发到其他冷单元以实现负载平衡。 MADF中的大多数转发通道管理工作都是由移动单元自己完成的,以减轻CC的负担。某个小区中的流量增加不会受到转发信道数量的上限。如果热小区中的用户彼此之间相距很远,并且这些用户可以使用相同的转发通道将数据转发到不同的冷相邻小区而不会受到干扰,则可能会更多。我们发现,在使用MADF的系统中,在一定的延迟要求下,可以极大地提高特定小区或整个网络的吞吐量。

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