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Researches on routing handover are getting more and more in recent years, which leads to several handover principles. A series of developments have been made in routing research field under a single principle. This article puts forward a new strategy ILDRHS (Improved LDRHS) based on LDRHS (Least Delay Routing Handover Strategy). The new one concentrates on the combination of connecting time, delay...
In order to meet the need of source authentication in a wireless sensor network composed of IRIS nodes, this paper presents the implementation and performance analysis of the elliptic curve digital signature algorithm (ECDSA) on IRIS nodes. We choose 7 kinds of optimization algorithms for ECDSA to test and compare their performance further. By turning these optimizations on or off, we compare their...
This paper studies a new switch variable order affine projection algorithm (APA) for acoustic echo cancellation (AEC). Based on voice activity detection technique, a threshold calculated from the short-time energy of the far-end speech signal is derived to enable the APA to switch between the high- and low- order status. Algorithm convergence can thus be achieved when there is more input excitation...
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