Title	An Improved EM Algorithm for Network Link Delay Distributions Inference
Author	Hongjie Sun, Binxing Fang, Hongli Zhang
Citation	Vol. 6  No. 6  pp. 170-173
Keywords	network tomography, link delay distribution, Expectation-Maximization(EM) algorithm, A* algorithm

Title	An A*-based EM Algorithm for Network Link Delay Distributions Inference
Author	Hongjie Sun
Citation	Vol. 10  No. 3  pp. 98-102
Keywords	network tomography, link delay distribution, Expectation-Maximization(EM) algorithm, A algorithm, ant colony

Title	Impact of Link Delay Variation on MQTT and CoAP based Communication Performances in Mobile Environment
Author	OUAKASSE Fathia and RAKRAK Said
Citation	Vol. 17  No. 8  pp. 187-193
Keywords	MQTT, CoAP, Link Delay, Packet Loss, Performance, Mobile Environment.