Showing papers on "Wireless published in 1970"
TL;DR: Experimental results from the in-house and contractually-supported programs have surveyed the present status of microwave power transmission and sponsored experimental measurements on the overall efficiency of a microwave power Transmission link, and these results are described.
Abstract: Microwave power transmission for supplying electric power to space station complex for performing scientific experiments over long periods in earth orbits
16 citations
01 Jan 1970
TL;DR: This paper de-signs a wireless meter reading system based on short distance wireless communication technology and NFC that is stable, low cost and good versa-tility.
Abstract: With the popularization of smart phones and the continuous popularization of NFC near field communication technology, low-power short-range wireless communication technology is widely used in wireless meter reading. It is used for meter reading and compatibility in existing systems. This paper de-signs a wireless meter reading system based on short distance wireless communication technology and NFC. The system is stable, low cost and good versa-tility. The system is based on short distance wireless communication technology and NFC wireless meter reading system.
2 citations
01 Jan 1970
TL;DR: The obtained results from test-bed implementation show the efficiency of proposed scheme in terms of communication and computation cost, number of updated paths and security index due to key updating, while at the same time achieving both forward and backward secrecy.
Abstract: Key management is one of the challenging issues in group communications. It is generally used to secure multicast data transmission as well as preventing potential eavesdropping by malicious attackers. Group security key should be maintained for data encryption, while group key update and dissemination processes are required when a new user joins or leaves the group, which eventually lead to high communication and computation cost. Since eavesdrop activities can be initiated by capturing the disseminated keys, higher communication and computation cost due to frequent updates also increase the possibility of attack of multicast transmission. In this paper, a key management scheme for IPv6 networks is proposed to reduce communication and computation cost and therefore, fewer security risks. The obtained results from test-bed implementation show the efficiency of proposed scheme in terms of communication and computation cost, number of updated paths and security index due to key updating, while at the same time achieving both forward and backward secrecy.
1 citations