Here we continue the analytic study of packet switching in radio channels which we reported upon in our two previous papers [ 11, [2]. Again we consider a population of terminals communicating with a central station over a packet-switched radio channel. The allocation of bandwidth among the contending terminals can befixed [e.g., time-division multiple access (TDMA) or frequency-division multip...

This paper is devoted to the optimization of the matched filter bounds (MFB) of different co-channel users, using adaptive antenna arrays at base stations for downlink transmit beamforming in cellular mobile communication systems. We mainly consider time division multiple access (TDMA) frequency division duplex (FDD) based systems. Note that in the case of time division duplex (TDD), under cert...

Abstract This communication suggests an orthogonal interleaver set for interleave division multiple access (IDMA) based non (NOMA) schemes from beyond 5G viewpoint to support enormous increase in user count. The method generates by providing two mother interleavers as seed generate other users’ interleaving patterns progressively. key feature of the proposed scheme is that it reduces implementa...

Some kinds of communication systems work in very low signal-to-noise (LSNR) environments. For these to function reliably, <span>specific techniques and methodologies have be used mitigate the degrading effects channel. The channel coding method is key element most LSNR systems, but emphasizing code division multiple access (CDMA) a new transmission technique channels. To enhance CDMA sche...