论文部分内容阅读
随着无线通信技术的多样化发展,越来越多的移动终端具备了多个无线网络接口。流控制传输协议(SCTP)具有多宿主特性,能够通过路径失败的切换机制来提升传输的鲁棒性。针对无线网络的链路多变、频谱稀缺且具有相对较高的丢包率、中断率等特点,提出一种无线环境下综合考虑链路带宽和稳定性的SCTP路径切换机制。仿真结果表明,提出的机制可较好地对抗无线环境的不稳定性,并更加有效地利用无线频谱资源。
With the diversification of wireless communication technologies, more and more mobile terminals have multiple wireless network interfaces. Flow Control Transmission Protocol (SCTP) has a multi-homed nature and can improve the robustness of the transmission through a failover path. Aiming at the characteristics of wireless links such as changing link, scarcity of spectrum, relatively high packet loss rate and interrupt rate, this paper proposes a SCTP path switching mechanism considering link bandwidth and stability in wireless environment. The simulation results show that the proposed mechanism can better combat the instability of wireless environment and make more efficient use of wireless spectrum resources.