Implementation of multi-modal access scheme in shared mobile spaces

为了提高移动计算机的无线通信质量，我们研究了移动计算机的网络协议。我们基于一个名为share multiple paths procedure for cluster network Environment （SHAKE）的过程开发了协议，该过程利用一组特定的相邻移动计算机和固定网络之间的多条路径来提高通信速度和可靠性。SHAKE的关键技术是移动计算机组与固定网络之间的路径聚合和流量分配。因为这些功能可以作为应用层协议、传输层协议和网络层协议的功能来实现。我们研究了实现SHAKE功能的各层协议。我们开发了WWW SHAKE，这是一个实现WWW流量的SHAKE功能的协议，移动IPv4 SHAKE和移动IPv6 SHAKE是移动IPv4和移动IPv6的增强。我们研究了在传输层增强TCP作为SHAKE的实现，但这种方法没有取得足够的结果。

We investigated network protocols for mobile computers with the goal of enhancing the quality of wireless communication of mobile computers. We developped protocols based on a procedure named SHAring multiple paths procedure for cluster network Environment (SHAKE), which utilizes multiple paths between an ad hoc group of neighboring mobile computers and a fixed network for enhancing communication speed and reliability.The key technology of the SHAKE is aggregation of paths between the group of the mobile computers and the fixed network and to distribution of the traffic to each path. Because these functions can be realized as functions of an application-layer protocol, a transport-layer protocol and a network-layer protocol. We investigated protocols realizing SHAKE's function at each layer protocol. We developed WWW SHAKE that a protocol achieving SHAKE function specialized for WWW traffic, Mobile IPv4 SHAKE and Mobile IPv6 SHAKE as enhancements of Mobile IPv4 and Mobile IPv6. We investigated to enhance TCP as the realization of SHAKE at transport layer, we have not achieved adequate results for this approach.