Information communication networks are rapidly growing recently. Because of increase of communication overhead, traditional routing protocols using global information of the network, such as topology of the whole network or traffic demands between most of pairs of routers, are facing difficulty in reliable routing. To alleviate this, distributed routing protocols relying only on local observables of the network attract much attention recently. The nonrequirement of global knowledge of the whole network largely reduces communication overhead of these protocols. However, the lack of knowledge can also be a significant drawback of them because they cannot promptly respond to traffic changes that occur on out of their local scopes. It means that network resources cannot be utilized sufficiently. To solve the problem, here, by extending an existing distributed routing protocol called ARAS, we propose a novel routing protocol that utilizes multiple paths in parallel. The protocol adaptively modulates packet allocation ratio to paths based only on local observables of the network. Multipath routing, however, easily give flapping of packet allocation due to competition among multiple routers. We study competition between routers and provide ways to suppress the flapping. We show validity of the proposal using a network simulation where prompt response of packet reallocation is required.

Since 2008, we have been developing the integrated SoC (System-On-Chip), which incorporates the ultra-high-speed multi-level QAM modem, multiple connection type MAC (Media Access Control) and also the Gigabit Ethernet interface, in a bid to adapt to the quasi-millimeter wave broadband wireless system. In 2009, we developed the SoC for the WT (remote side Wireless Terminal on P-MP (Point-to-Multi-Point) system) which functions on maximum 40 MHz radio clock, single-carrier 64QAM, and TDD-TDM/TDMA transmission. Then we were able to conduct the equipment level RF evaluations in the actual radio connection after implementing the SoC in the 26 GHz band prototype P -MP system which is called as "Advanced WIPAS (Wireless IP Access System)" [1][2][3]. This time, we have evaluated the performance of the prototype system. As a result, the adaptive sharing of the physical band 240 Mbps to up-link and down-link for each remote station has been succeeded and we have been able to confirm more than 180 Mbps of maximum effective throughput when one station of multi users is assigned the maximum resource to. At the same time, we have also been able to confirm that the function of QoS control and the broadcast transmission to the WTs worked effectively. Therefore we would like to report the results by this paper.