面向WiFi空闲频带的机会性MAC接入的M2M通信
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摘要
机对机(Machine-to-Machine,M2M)通信已成为物联网重要组成部分。使用M2M通信设备的快速增长和频谱资源的短缺给网络接入提出了挑战。为此,提出面向WiFi空闲频带的机会性MAC接入的M2M通信策略,记为WiFi-M2M。当WiFi网络无流量传输时,就允许M2M节点机会性接入信道。首先由接入点(Access Point,AP)通过发送修改的(Clear-to-Send,CTS)帧(m CTS),给M2M节点预留信道,当收到m CTS帧后,M2M节点就竞争接入信道,并依据AP所分配的数据时隙传输数据包。当M2M节点完成通信后,WiFi节点就重新占用信道。通过WiFi-M2M策略,提高了WiFi网络的信道利用率。
M2 M Communication is an integral part of the Internet-of-Things( Io T). The explosive growth in devices using an M2 M communication and the shortage of spectrum has made network access for such devices a challenging problem. Therefore,Opportunistic MAC Protocol for M2 M Communication in WiFi idle spectrum is proposed in this paper,which is marked as WiFi-M2 M. WiFi-M2 M allows an M2 M communication within white spaces( i. e.,periods without traffic) of WiFi networks. The AP reserves the channel for M2 M communication by sending a modified CTS( m CTS) frame. Receiving m CTS frame,M2 M nodes contend for the channel,and transmit its packet in sending slot. The WiFi nodes reuse channel after the completion of the M2 M communication cycle. The proposed protocol increases the effective utilization of the channel of WiFi networks.
M2 M Communication is an integral part of the Internet-of-Things( Io T). The explosive growth in devices using an M2 M communication and the shortage of spectrum has made network access for such devices a challenging problem. Therefore,Opportunistic MAC Protocol for M2 M Communication in WiFi idle spectrum is proposed in this paper,which is marked as WiFi-M2 M. WiFi-M2 M allows an M2 M communication within white spaces( i. e.,periods without traffic) of WiFi networks. The AP reserves the channel for M2 M communication by sending a modified CTS( m CTS) frame. Receiving m CTS frame,M2 M nodes contend for the channel,and transmit its packet in sending slot. The WiFi nodes reuse channel after the completion of the M2 M communication cycle. The proposed protocol increases the effective utilization of the channel of WiFi networks.
引文
[1] Ajinkya R,Biplab S. O-MAC:Opportunistic MAC Protocol for M2M Communication in Wi Fi White Space[J]. IEEE Communications Letters,2017,21(11):2440-2444.
[2] A. Rajandekar and B. Sikdar. On the feasibility of using Wi Fi white spaces for opportunistic M2M communications[J]. IEEE Wireless Commun. Lett.,2015,4(6):681-684.
[3] A. Rajandekar and B. Sikdar. Characterization of white spaces in Wi-Fi networks for opportunistic M2M communications[J]. IEEE Trans. Commun.,2016,64(12):5125-5135.
[4] J. Hou,B. Chang,D.-K. Cho,and M. Gerla. Minimizing 802. 11 interference on Zig Bee medical sensors[C].in Proc. ICST Body Nets,Los Angeles,CA,USA,Apr.2013:1-8.
[5] S. Ishida,S. Tagashira,and A. Fukuda. AP-assisted CTS-blocking for Wi Fi-Zig Bee coexistence[C]. in Proc. IEEE ISCN,Sapporo,Japan,2015:110-114.
[6] J. R. Cha and J. H. Kim. Dynamic framed slotted ALOHA algorithms using fast tag estimation method for RFID system[C]. in Proc. IEEE CCNC,Jan. 2016:768-772.
[7] C. W. Park,D. Hwang,and T.-J. Lee. Enhancement of IEEE 802. 11ah MAC for M2M communications[J].IEEE Commun. Lett.,2014,18(7):1151-1154.
[8] A. Klemm,C. Lindemann,and M. Lohmann. Modeling IP trafc using the batch Markovian arrival process[J].Perform. Eval.,2013,54(2):149-173.
[2] A. Rajandekar and B. Sikdar. On the feasibility of using Wi Fi white spaces for opportunistic M2M communications[J]. IEEE Wireless Commun. Lett.,2015,4(6):681-684.
[3] A. Rajandekar and B. Sikdar. Characterization of white spaces in Wi-Fi networks for opportunistic M2M communications[J]. IEEE Trans. Commun.,2016,64(12):5125-5135.
[4] J. Hou,B. Chang,D.-K. Cho,and M. Gerla. Minimizing 802. 11 interference on Zig Bee medical sensors[C].in Proc. ICST Body Nets,Los Angeles,CA,USA,Apr.2013:1-8.
[5] S. Ishida,S. Tagashira,and A. Fukuda. AP-assisted CTS-blocking for Wi Fi-Zig Bee coexistence[C]. in Proc. IEEE ISCN,Sapporo,Japan,2015:110-114.
[6] J. R. Cha and J. H. Kim. Dynamic framed slotted ALOHA algorithms using fast tag estimation method for RFID system[C]. in Proc. IEEE CCNC,Jan. 2016:768-772.
[7] C. W. Park,D. Hwang,and T.-J. Lee. Enhancement of IEEE 802. 11ah MAC for M2M communications[J].IEEE Commun. Lett.,2014,18(7):1151-1154.
[8] A. Klemm,C. Lindemann,and M. Lohmann. Modeling IP trafc using the batch Markovian arrival process[J].Perform. Eval.,2013,54(2):149-173.