基于SAR策略提高蓝牙散射网吞吐量

计算机工程与应用 ›› 2007, Vol. 43 ›› Issue (16): 149-151.

基于SAR策略提高蓝牙散射网吞吐量

郭锋^1,2，庄奕琪¹

1.西安电子科技大学微电子所，西安 710071
2.浙江万里学院 EDA市重点实验室，浙江宁波 315100

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-06-01 发布日期:2007-06-01
通讯作者: 郭锋

Improving throughput of bluetooth scatternet by SAR policies

GUO Feng^1,2，ZHUANG Yi-qi¹

1.College of Microelectronics，Xidian University，Xi’an 710071，China
2.Zhejiang Wanli university，Ningbo，Zhejiang 315100，China

Received:1900-01-01 Revised:1900-01-01 Online:2007-06-01 Published:2007-06-01
Contact: GUO Feng

摘要/Abstract

摘要： 在蓝牙微微网中，主设备决定跳频序列。由于各主设备独立跳频，在多个微微网中数据分组会由于跳至同一频隙而产生较高的误分组率，从而导致散射网吞吐量下降。提出了一种避免散射网中微微网相互干扰的有效方法。通过比较彼此之间的跳频序列，微微网可以预测到何时会发生时隙碰撞，然后采用数据分组分割与重组的策略进行回避。仿真表明，该方法明显地提高了散射网的数据吞吐量。

Abstract: In a bluetooth piconet，the master essentially controls the channel.Due to an absence of coordination between independent masters while accessing the wireless medium，devices will encounter high packet interference if several piconets are simultaneously operating in the same area and the throughput of the devices is decreasing.To alleviate the impact，an efficient method is proposed by interference-aware SAR（Segmentation/Reassembling） policies.Through comparing the frequency hopping sequence with others，the piconet can aware when the interference happens.Then it can avoid the collision of slots using the data packets segmentation and reassembling policies.Form the simulation，we find the method can improve the data throughput of bluetooth scatternet evidently.

郭锋^1,2，庄奕琪¹. 基于SAR策略提高蓝牙散射网吞吐量[J]. 计算机工程与应用, 2007, 43(16): 149-151.

GUO Feng^1,2，ZHUANG Yi-qi¹. Improving throughput of bluetooth scatternet by SAR policies[J]. Computer Engineering and Applications, 2007, 43(16): 149-151.