Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Rohit Iyer Seshadri"'
Autor:
Bassel F. Beidas, Rohit Iyer Seshadri
Publikováno v:
IEEE Transactions on Communications. 68:7660-7671
Aggressive frequency reuse alleviates the frequency-spectrum shortage in multibeam satellite systems targeting multi-Terabits-per-second throughput but creates harsh co-channel interference (CCI) environment. For forward-link, state-of-the-art receiv
Autor:
Bassel F. Beidas, Rohit Iyer Seshadri
Publikováno v:
ASMS/SPSC
Breaking the barrier of Terabit-per-second connectivity in multibeam satellite systems is impeded by the scarcity of frequency spectrum. Aggressive frequency reuse can overcome spectrum limitations but at the expense of inducing harsh cochannel inter
Publikováno v:
VTC-Fall
Asynchronous Scrambled Coded Multiple Access (A- SCMA) has been shown to offer high spectral efficiencies on Random Access (RA) channels. By allowing unscheduled data transmission, latency is reduced and power can be conserved, making such techniques
Autor:
Stan Kay, Victor Liau, Rohit Iyer Seshadri, Neal Becker, Mustafa Eroz, Liping Chen, Lin-nan Lee
Publikováno v:
GLOBECOM
A family of new non-orthogonal multiple access techniques named Scrambled Coded Multiple Access (SCMA) is described. It allows different users of a communications system to efficiently share the same bandwidth by using specific scramblers to separate
Autor:
Rohit Iyer Seshadri, Bassel F. Beidas
Publikováno v:
IEEE Transactions on Communications. 58:1824-1833
We introduce analytical characterization of the nonlinear interference that results when passing more than one high-order modulation carrier through the same nonlinear transponder high-power amplifier (HPA). A Volterra filter is proposed which is nov
Publikováno v:
IEEE Transactions on Vehicular Technology. 57:345-353
The design of bit-interleaved coded continuous phase modulation (CPM) is characterized by the code rate, alphabet size, modulation index, and pulse shape. This paper outlines a methodology for determining the optimal values of these parameters under
Autor:
Bassel F. Beidas, Rohit Iyer Seshadri
Publikováno v:
IEEE Transactions on Communications. :1-1
Orthogonal frequency-division multiplexing (OFDM), special form of multicarrier modulation, is the cornerstone of broad range of current standards. In addition, fifth-generation (5G) terrestrial wireless networks, advancing at accelerated speed, cont
Publikováno v:
2014 IEEE Military Communications Conference.
We here consider utilizing faster-than-Nyquist (FTN) signaling to increase spectral efficiency in combination with using tight frequency roll-off, optimized signal constellations that have better energy efficiency, and allowing the satellite transpon
Publikováno v:
32nd AIAA International Communications Satellite Systems Conference.
After ten years of successful deployment, the second generation satellite standard for digital video broadcasting, DVB-S2, has been updated with several new features without changing its fundamental structure. This paper provides a high level discuss