High Efficiency Digital GaN MMIC Power Amplifiers for Future Switch-Mode Based Mobile Communication Systems

2009 ◽  
Author(s):  
S. Maroldt ◽  
C. Haupt ◽  
R. Kiefer ◽  
W. Bronner ◽  
S. Mueller ◽  
...  
Keyword(s):  
Mobile Communication ◽  
Power Amplifiers ◽  
Communication Systems ◽  
High Efficiency ◽  
Mobile Communication Systems ◽  
Switch Mode

A Key Insulated Ciphertext Policy Attribute Based Sign Cryption for Mobile Networks

2016 ◽  
Vol 13 (10) ◽  
pp. 7226-7233
Author(s):  
Zhenjiang Dong ◽  
Hanshu Hong ◽  
Zhixin Sun ◽  
Wei Wang
Keyword(s):  
Mobile Communication ◽  
Communication Systems ◽  
High Efficiency ◽  
Performance Comparison ◽  
Mobile Communication Systems ◽  
Computation Cost ◽  
Attribute Based Encryption ◽  
High Efficient ◽  
Ciphertext Policy ◽  
Signcryption Scheme

ABE (attribute based encryption) and ABS (attribute based signature) are significant cryptographic primitives which can guarantee secure data sharing between users. However, the traditional sign-then-encrypt mechanism not only consumes much more computation cost on wireless terminal devices, but also brings about high transmission load to mobile communication systems when key updating happens. In this paper, we first combine the advantages of ciphertext policy attribute based encryption (CP-ABE) with ABS and construct a ciphertext policy attribute based signcryption scheme based on LSSS structure. Secondly, we introduce the key-insulation mechanism into our scheme, which helps provide flexible and high efficient key updating as well as guarantees both forward and backward security. Finally, by security analysis and performance comparison, we prove our scheme meets the security demands of confidentiality, unforgeability as well as lower computation cost. The high efficiency with better performance shows that our KI-CP-ABSC (key-insulated ciphertext policy attribute based signcryption) scheme is more appropriate for the data security protection in mobile communication systems.

Code-aided adaptive equaliser for mobile communication systems

1998 ◽  
Vol 34 (17) ◽  
pp. 1638 ◽  
Author(s):  
S. Tantikovit ◽  
A.U.H. Sheikh ◽  
M.Z. Wang
Keyword(s):  
Mobile Communication ◽  
Communication Systems ◽  
Mobile Communication Systems
Sign in / Sign up

Export Citation Format

Share Document