應(yīng)用于WBAN的IEEE 802.15.6協(xié)議的仿真分析與優(yōu)化
發(fā)布時(shí)間:2018-01-06 11:46
本文關(guān)鍵詞:應(yīng)用于WBAN的IEEE 802.15.6協(xié)議的仿真分析與優(yōu)化 出處:《西安電子科技大學(xué)》2014年碩士論文 論文類(lèi)型:學(xué)位論文
更多相關(guān)文章: 無(wú)線(xiàn)人體局域網(wǎng) 安全 關(guān)聯(lián) IEEE802.15.6 OPNET仿真
【摘要】:近年來(lái),隨著可穿戴式醫(yī)療傳感器和無(wú)線(xiàn)通信技術(shù)的迅速發(fā)展,WBAN已經(jīng)成為一種非常有前景的技術(shù),將會(huì)徹底地改變當(dāng)前的醫(yī)療護(hù)理方式。與傳統(tǒng)的面對(duì)面診斷不同,WBAN可以對(duì)病人進(jìn)行遠(yuǎn)程、連續(xù)和實(shí)時(shí)的監(jiān)護(hù),將采集到的病人相關(guān)數(shù)據(jù)經(jīng)過(guò)處理后傳輸給醫(yī)療數(shù)據(jù)基站。這樣,醫(yī)療護(hù)理過(guò)程可以更加方便和快捷,在很大程度上提高醫(yī)療護(hù)理的效率。 IEEE802.15TG6小組設(shè)計(jì)了一個(gè)應(yīng)用于WBAN的低功率的通信標(biāo)準(zhǔn)IEEE802.15.6,在這個(gè)標(biāo)準(zhǔn)中規(guī)定了MAC層的接入方式以及物理層的一些參數(shù),同時(shí)對(duì)于傳感器節(jié)點(diǎn)間的安全通信設(shè)計(jì)了一個(gè)安全規(guī)定。設(shè)計(jì)無(wú)線(xiàn)人體局域網(wǎng)(WBAN)的安全機(jī)制時(shí)會(huì)面臨安全與效率之間的權(quán)衡。一方面,WBAN中采集和存儲(chǔ)的大多是病人的生理數(shù)據(jù),這些數(shù)據(jù)對(duì)于病人的診斷和治療來(lái)說(shuō)至關(guān)重要,因此確保這些數(shù)據(jù)的安全是非常重要的。對(duì)真實(shí)數(shù)據(jù)的獲取失敗可能使病人無(wú)法接受有效的治療,甚至導(dǎo)致錯(cuò)誤的治療。另一方面,傳感器的體積通常很小,能量的供應(yīng)也相對(duì)有限,這使得他們?cè)谟?jì)算和存儲(chǔ)方面的性能較差;但是頻繁地充電或者更換電池對(duì)于傳感器節(jié)點(diǎn),尤其是植入人體內(nèi)部的傳感器節(jié)點(diǎn)來(lái)說(shuō)更是不可取的,所以傳感器節(jié)點(diǎn)所使用的加密算法應(yīng)該盡可能地輕量級(jí),應(yīng)能夠滿(mǎn)足計(jì)算速度快和存儲(chǔ)開(kāi)銷(xiāo)小等特點(diǎn)。 本文首先對(duì)IEEE802.15.6標(biāo)準(zhǔn)進(jìn)行了大致介紹,然后針對(duì)其中的安全規(guī)定進(jìn)行了主要的介紹和詳細(xì)的理論分析,并使用Opnet Modeler仿真工具對(duì)協(xié)議中的安全關(guān)聯(lián)過(guò)程進(jìn)行了建模仿真,分析其能量消耗情況以及完成一次方針?biāo)枰臅r(shí)間。緊接著,本文提出了一種基于生物特征的安全關(guān)聯(lián)協(xié)議。這個(gè)方案使用傳感器節(jié)點(diǎn)采集到的共同的生理特征數(shù)據(jù)作為相互間秘密共享的信息,以此為基礎(chǔ)通過(guò)安全關(guān)聯(lián)過(guò)程建立起一個(gè)共同的主密鑰MK;由于使用的生理信息是傳感器本身采集到的相同數(shù)據(jù),所以省去公共信息的傳輸,同時(shí)也節(jié)省了安全關(guān)聯(lián)幀的長(zhǎng)度,減少了計(jì)算量,在提供安全性的基礎(chǔ)上降低了完成安全關(guān)聯(lián)過(guò)程所需要的能量消耗,同時(shí)因?yàn)闇p少了信息交互的次數(shù)也縮短了完成安全關(guān)聯(lián)所用的時(shí)間。
[Abstract]:In recent years, with the rapid development of wearable medical sensors and wireless communication technology, WBAN has become a very promising technology, will completely change the current mode of medical care. Unlike the traditional face diagnosis, WBAN can be remotely to the patient, even continued monitoring and real time, will be collected patient related data transmitted after treatment to the medical data base. So the process of care can be more convenient and efficient, improve the efficiency of medical care to a great extent.
IEEE802.15.6 communication standard low power IEEE802.15TG6 team designed an application on the WBAN, some of the parameters in this standard access mode of MAC layer and physical layer is provided, at the same time for secure communication between the sensor nodes in the design of a safety regulations. The design of wireless body area network (WBAN) security mechanism will face a trade-off between safety and efficiency. On the one hand, the WBAN collection and storage are the patient's physiological data, these data is very important for the diagnosis and treatment of the patient, thus ensuring the security of these data is very important. To obtain the real data of the failure may cause the patient to accept effective treatment, even lead to wrong treatment. On the other hand, the sensor volume is usually very small, the supply of energy is relatively limited, which makes them in terms of computation and memory performance is poor; but Frequently charge or replace the battery for sensor nodes, especially the sensor node implanted within the human body but it is not desirable, so the encryption algorithm of sensor nodes should be lightweight, should be able to meet the fast calculation speed and small storage overhead and so on.
This paper first makes a general introduction to the IEEE802.15.6 standard, then according to the safety regulations which were mainly introduced and detailed analysis theory, and the security association agreement process was simulated using Opnet Modeler simulation tool to analyze the energy consumption and the completion of a policy required by the time. Then, this paper a security association agreement based on biological characteristics. This scheme uses common sensor nodes to collect physiological feature data as a mutual secret sharing of information, on the basis of the security association process to establish a common key MK; because of the physiological information used is the same as the data collected by the sensor itself. So save public information transmission, but also save the security association frame length, reducing the amount of calculation, based on safety It reduces the energy consumption required to complete the security association process, while reducing the number of information interaction reduces the time used to complete the security association.
【學(xué)位授予單位】:西安電子科技大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類(lèi)號(hào)】:TN915.08
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