Emerging Trends in Computing and Communication: ETCC 2014, by Sabnam Sengupta, Kunal Das, Gitosree Khan

By Sabnam Sengupta, Kunal Das, Gitosree Khan

The e-book provides papers added by way of researchers, business specialists and academicians on the convention on rising traits in Computing and communique (ETCC 2014). As such, the booklet is a set of modern and cutting edge works within the box community safeguard and Cryptography, Cloud Computing and large facts Analytics, facts Mining and information Warehouse, verbal exchange and Nanotechnology and VLSI and photograph Processing.

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Emerging Trends in Computing and Communication: ETCC 2014, March 22-23, 2014

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The Fig. 4d shows the coupling of port1 with all other output ports. 4b represents various losses of the proposed Butler matrix. e. of both losses and couplings of the proposed Butler matrix in dB. 40 K. Debbarma et al. Fig. 4c Phase response of the four ports Fig. 4 with negligible loss tangent and simulated by method of moment (MoM) based IE3D electromagnetic simulator. 84 dB and various losses of the matrix are within tolerable range. 4 GHz with desired response. This circuit is suitable for the application in GSM planar antenna arrays, RADAR, satellites etc.

In D. com S. Sengupta et al. 1007/978-81-322-1817-3_4, Ó Springer India 2014 33 34 K. Debbarma et al. an array. The signals from these elements are combined to form a movable or switchable beam pattern that follows the desired user. The process of combining the signals and then focusing the radiation in a particular direction is often referred to as digital beam forming [3]. Smart antennas are most often realized with either switched-beam or fully adaptive array antennas. An array consists of two or more antennas (the elements of the array) spatially arranged and electrically interconnected to produce a directional radiation pattern.

Crochiere RE, Webber SA, Flanagan JN (1976) Digital coding of speech in subbands. The BELL Syst Technical Journal, October 1976 3. Knutson PG,Ramaswamy K, Richardson JW (2001) Subband ADPCM voice encoding and decoding. PCT/US2000/034410, July 2001 4. Szczutkowski CF (1986) Subband encoding method and apparatus. EP 0178608 A2, April 1986 5. Proakis JG (2001) Digital communications, 4th edn. Mcgraw-Hill, New York 6. Leon W, Couch II (1995) Modern communication systems principles and applications.

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