1. A survey on routing protocols for wireless sensor networks;Akkaya;Ad Hoc Networks,2005
2. Wireless sensor networks: a survey;Akyildiz;Computer Networks,2002
3. Area spectral efficiency of cellular mobile radio systems;Alouini;IEEE Transactions on Vehicular Technology,1999
4. MIMO transmission using a single RF source: theory and antenna design;Alrabadi;IEEE Transactions on Microwave Theory Technology Antennas Propagation Joint Special Issue on MIMO Technology,2012