In this paper, a new proposed space-time code for four-time slots and two transmitters for uplink transmission in a mobile system is presented. The mobile system needs three or four-time slots for data transmission. Also, this code is applied for multi-input multi-output (MIMO) fading channel. The proposed orthogonal space-time code achieves the properties of space-time code such as a full rate...

The two time slots TDMA-based algorithms has been proposed by various researchers. However, the high operational complexity and computational time reduces the performance of these algorithms and has several limitations. Therefore, the Relay Assumption-based Operational Complexity Reduction Algorithm (RAOCRA) has been proposed. It is assumed that the relay is stationary and completely normalizes...

This paper describes the University Course Timetabling Problem (UCTP) used in the International Timetabling Competition 2003 organized by the Metaheuristics Network and presents a state-of-the-art heuristic approach towards the solution of the competition instances. It is a greatly improved version of the winning competition entry. The heuristic is divided into three phases: at first, a feasibl...

Gang scheduling is currently the most popular scheduling scheme for parallel processing in a time shared environment. In this paper we first describe the ideas of job re-packing and workload tree for efficiently allocating resources to enhance the performance of gang scheduling. We then present some experimental results obtained by implementing four different resource allocation schemes. These ...

Recently, space time block codes (STBCs) are proposed for multi-input and multi-output (MIMO) antenna systems. Designing an STBC with both low decoding complexity and non-vanishing property for the Long Term Evolution Advanced (LTE-A) remains an open issue. In this paper, first our previously proposed STBC’s non-vanishing property will be completely described. The proposed STBC scheme has some ...

This document gives an overview of the most relevant design aspects of the lightweight medium access control (LMAC) protocol [16] for wireless sensor networks (WSNs). These aspects include self-configuring and localized operation of the protocol, time synchronization in multi-hop networks, network setup and strategies to reduce latency. The main goal in designing a MAC protocol for WSNs is to m...

Industry participants agree that, when inclement weather forces the FAA to reassign airport landing slots, incentives and property rights should be respected. We show that the FAA’s Compression Algorithm is incentive compatible, but fails to guarantee a form of property rights. This is significant since these conditions were the motivation for introducing Compression a decade ago. We give an al...