Learn More
In this paper, we present a novel multiuser detection (MUD) technique based on ant colony optimization (ACO), for synchronous multi-carrier code division multiple access (MC-CDMA) systems. ACO algorithms are based on the cooperative foraging strategy of real ants. While an optimal MUD design using an exhaustive search method is prohibitively complex, we(More)
The Convolutional Neural Network (CNN) is a breakthrough technique in object classification and pattern recognition. It has enabled computers to achieve performance superior to humans in specialized image recognition tasks. Prior art CNNs learn object features by stacking multiple convolutional/non-linear layers in sequence on top of a classifier. In this(More)
This paper explores the application of the ant colony algorithm for an NP-complete problem in the area of wireless communications. The specific problem is one of detecting users (binary vectors) in a multi-user environment in synchronous MC-CDMA (multi-carrier Code Division Multiple Access) systems, such that the total interference noise in minimized. This(More)
We introduce an architecture for a programmable IEEE 802.11ah Wi-Fi modem based on a new Cadence Xtensa-based low-energy DSP. The design is based on a methodology for partitioning the system into hardware and software components that takes into account power consumption, silicon area and the need for programmability. Physical layer software functions avail(More)
Wireless broadband communications is a rapidly growing industry. New enabling technologies such as multi-carrier code division multiple access (MC-CDMA) are shaping the future of wireless systems. However, research efforts in improving MC-CDMA receiver performance have received limited attention and there is a need for innovative receiver designs for next(More)
In this work, we propose a new multicarrier platform to optimize the efficiency of wireless operators' licensed bands and to enable flexible sharing of licensed and unlicensed bands (in different spectral regions). This research supports a recent FCC proposal which suggests innovative spectrum management regulations to improve spectral efficiency.(More)
  • 1