群组通信中发言权控制机制的改进  

Improvement of Floor Control Mechanism in Group Communication

作　　者：李园源 罗国明[2] 李侃[3] 

机构地区：[1]解放军理工大学通信工程学院研究生1队,江苏南京210007 [2]解放军理工大学通信工程学院 [3]第二炮兵通信网络技术管理中心,北京100085

出　　处：《军事通信技术》2015年第1期1-4,共4页Journal of Military Communications Technology

摘　　要：在基于分组域的群组通信中,如何解决发言权控制问题是十分关键的,发言权控制机制的优劣直接影响到群组通信的规模、通信效率以及群组通信业务的推广。在已有的三种发言权控制机制中,TBCP/DQ具有较好的时效性和使用效果,但当群组中用户数量急剧增加时,控制服务器之间会交互大量的控制信令,容易造成网络拥塞,如果再考虑丢包和差错等因素,其实用性将更加受限。文章提出一种可迁移分布式队列发言权控制机制以进一步优化和提高发言权控制效率,仿真结果表明该机制在用户规模较大的情形下,具有更好的优越性。To solve the problem of floor control is very important in the group communication based on packet domain. The pros and cons of floor control mechanism directly influence the size of group communication, communication efficiency and the expansion of group communication service. As to the timeliness and using effect, TBCP/DQ is the best among the three existing floor control mechanisms. But when the number of users in the group increases dramatically, the network will transfer a great deal of control signal among the controlling servers and cause the network congestion easily. If taking the packet loss and error into consideration, the practicabili- ty of TBCP/DQ is further limited. In this paper, the floor control mechanism of migration of the distributed queue was presented to optimize and improve the efficiency of floor control. The sim- ulation result shows that TBCP/MDQ is superior under the condition that the user scale becomes larger.

关 键 词：发言权控制 可迁移控制 分布式控制 可迁移分布式控制 

分 类 号：TN915.09[电子电信—通信与信息系统]