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We have fabricated LG=90nm high-K dielectric enhancement-mode (e-mode) GaN MOS-HEMT which shows low IOFF=70nA/µm (VD=3.5V, VG=0V), low RON=490Ω-µm, high ID,max=1.4mA/µm, and excellent power-added efficiency (PAE) of 80% at RF output power density (RF Pout) of 0.55W/mm (VD=3.5V, f=2.0GHz). These results represent (i) >3.6X lower RON at equivalent breakdown voltage (BVD) than industry-standard Si...
Mobile Ad hoc networks are self-organizing and self-configuring multi hop wireless networks where, the structure of the network changes dynamically. Since a destination node might be out of range of a source node, a routing procedure is always needed to find a path, so as to forward the packets appropriately between the source and the destination. This paper proposes a new approach to evolve a suitable...
A mobile ad hoc network consists of wireless hosts that may move often. Movement of hosts results in a change in routes, requiring some mechanism for determining new routes. Several routing protocols have already been proposed for ad hoc networks. This paper proposes a new routing protocol, named least overhead routing protocol (LORP) for mobile ad hoc networks. This paper suggests an approach to...
Mobile Ad-hoc Networks (MANETs) have gained a lot of importance in the recent years due to their flexible ways of operation, where mobile nodes form the network to communicate with each other, without the aid of any fixed infrastructure. Routing in MANETs is a challenging task mostly for its rapidly changing topology. Several routing protocols have already been proposed and implemented for ad-hoc...
The dynamic nature of MANETs makes the task of routing between source and destination nodes extremely difficult. In this paper a new efficient routing algorithm for mobile ad hoc networks is presented, along with a brief review of the state of the art scenario of routing topologies for MANETs. The new algorithm takes into consideration the mobility factor during routing. In the process, computational...
We present an effective method for time domain channel estimation of wireless orthogonal frequency division multiplexing (OFDM) system. Relying on a bent-pipe mechanism, the mobile receiver sends a fraction of the received data back to the base station which can then estimate both the forward link and reserve link channel impulse responses. Given knowledge on the forward link channel response, the...
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