In this paper, we study a multiple access scheme referred to as interleave-division multipleaccess (IDMA), in which interleavers are used as the only means for user separation. IDMA inherits many advantages from CDMA, such as diversity against fading and mitigation of the worst-case other-cell user interference problem. A low-cost iterative chip-by-chip multi-user detection algorithm is describ...

Vehicle-to-vehicle radio links suffer from power variations, multipath fading and associated Doppler spreading in frequency, as well as interference form other vehicles. These effects are investigated in the context of an Automated Vehicle Control Systems (AVCS) employing vehicle platoons. A statistical model for the channel is considered and the performance of the network involving many links ...

A survey and tutorial is provided on the subject of multiple-input–multiple-output (MIMO) multicarrier (MC) systems relying on the space–time shift keying (STSK) concept. We commence with a brief review of the family of MIMO systems, which is followed by the design of STSK systems in the context of MC modulation-based transmissions over dispersive wireless channels. Specifically, the STSK schem...

In this paper we present a novel infrared communication system for large cells and low user mobility. The proposed transmitter technique allows nearly perfect direction-of-arrival (DoA) estimation in time division multiple access (TDMA) environments only with three photodiodes. Using a photodiode array we show that known algorithms for DoA-estimation can be applied in spatial division multiple ...

In wireless communication system Code Division Multiple Access (CDMA) is the most popular and secures technology in Multiuser Detection (MUD. To get the better performance of system the combination of TDMA and CDMA that is Time Division Code Division Multiple Access (TD-CDMA) is used in the communication system. In this paper, different users with spreading walsh code have been used to compute ...

The throughput enhancement of Space-Time Spreading (STS)-based Multicarrier Direct Sequence Code Division Multiple Access (MC DS-CDMA) system is investigated in this paper. Variable Spreading Factor (VSF) is utilized to improve the data throughput of the system. In this contribution, an analytical approach is proposed to compute a new expression for the Bit Error Rate (BER) performance of t...

The challenges of future wireless networks imply that the physical layer of the next generation mobile communication system needs to be compatible with multiple-input multiple-output and allow a flexible multiple access scheme. Time-reversal space-time coding can be applied to a recent filtered multicarrier modulation scheme, named generalized frequency division multiplexing, to achieve a multi...