蓝牙室内信道模型与同频干扰研究

被引:1
作者
戴迎珺
机构
[1] 浙江万里学院基础学院
关键词
蓝牙; 干扰; 数据分组; 吞吐量; 丢包率;
D O I
暂无
中图分类号
TN925 [无线电中继通信、微波通信];
学科分类号
080402 ; 080904 ; 0810 ; 081001 ;
摘要
蓝牙使用的是免费的ISM频段,容易受到同频段内其它设备的干扰,这些干扰可能来自其他微微网的蓝牙设备。文中分析了蓝牙设备在微微网干扰下的数据传输情况,具体分析了ACL数据分组在微微网同频干扰下的丢包率及吞吐量。为了符合实际的应用场合,给出了适用于蓝牙室内传输的无线传播信道模型。根据室内通信的距离,得出瞬时随机接收信号功率和干扰微微网的随机干扰功率,并根据蓝牙接收特性曲线求出时隙位错误率,然后根据蓝牙不同的数据分组类型求出各分组的平均丢包率和吞吐量。通过分析和仿真可以看出,各ACL数据分组的丢包率和吞吐量基本随通信距离和干扰微微网的数量呈对数下降关系。文中与以往文献相比的特点是:不是一旦发生数据分组"碰撞"就认为丢包,而是由信号和干扰的强度来决定分组是否发送成功。因此分析结果更加准确和实用。
引用
收藏
页码:134 / 136+139 +139
页数:4
相关论文
共 10 条
[1]  
Radio network performance of Bluetooth. Zilrbes S,Stahl W,Matheus K,et al. IEEE ICC2000 . 2000
[2]  
Throughput of strongly inter-fering slow frequency-hopping networks. Florén F,Stranne A,Edfors O,et al. IEEE Transactions on Communications . 2004
[3]  
Analytical investigation on the coexistence of B luetooth piconets. PasoliniG. IEEE Communications Letters . 2004
[4]  
Mutual interference Between independent Bluetooth piconets. Howitt I. IEEE Transactions on Vehicular Technology . 2003
[5]  
Specification of the bluetooth system.core,version1.2. SIG. http://www.bluetooth.com . 2003
[6]  
An analytical model of in-ter-channel interference in Bluetooth-based systems. Sevillano J L,DiazdelRio F,Jimenez G. Mobile and Wireless Communications Network . 2002
[7]  
Performance of PHY and MAC layers of a Bluetooth piconet in multi-Bluetooth interference envi-ronment. Feng W,Nallanathan A,Garg H K. Global Telecommunications Conference . 2004
[8]  
Interference between Bluetooth networks-upper bound on the packet error rate. El-Hoiydi A. IEEE Communications Letters . 2001
[9]  
Packet interference in a heterogeneous cluster of bluetooth piconets. Naik K,Wei D,Su Y T. IEEE Vehicular Technology Con-ference . 2004
[10]  
Analysis of packet interference and aggregated throughput in a cluster of bluetooth piconets under different traffic conditions. Naik K,Wei D S L,Su YuT,et al. IEEE Journal on Selected Areas in Communications . 2005