摘要： 为实现Ad Hoc多播网络中丢失数据的源端恢复或本地恢复，定义分组缓存效率和剩余缓存效率指标。在分析缓存效率最优问题的基础上，提出一种缓存优化策略OCT，通过分布式缓存算法使系统尽可能逼近理论最优值。实验结果表明，OCT能有效提高多播传输的可靠性，减少丢失数据的恢复时间。
关键词:
Ad Hoc网络,
丢失恢复,
多播传输,
缓存策略,
缓存效率
Abstract: To realize the lost data source recovery or local recovery of Ad Hoc multicast networks, this paper defines grouping cache efficiency and remaining cache efficiency index. On the analysis of the optimal cache problem, it presents a caching optimization strategy Optimal Cache Time(OCT), through the distributed cache algorithm make the system as approximation of the theory optimal value. Experimental result shows that OCT can obviously improve the performance of multicast network and decrease the latency of data loss recovery.
Key words:
Ad Hoc network,
loss recovery,
multicast transmission,
cache strategy,
cache efficiency
中图分类号:
陈卓, 陈黎霞. 一种Ad Hoc多播网络中的缓存优化策略[J]. 计算机工程, 2012, 38(17): 63-65.
CHEN Zhuo, CHEN Li-Xia. A Cache Optimization Strategy in Ad Hoc Multicast Network[J]. Computer Engineering, 2012, 38(17): 63-65.