05
Nov

A Study of Logical Location Map for Indoor Location Service

In this paper, we propose a Logical Location Map to solve the problem of decreased accuracy of indoor physical location in the indoor environment. A lot of studies have been performed to reduce the indoor physical location errors. However, location errors still occur with changing environment, more research is needed. This paper aims to obtain […]

01
Jan

An Energy Efficient Active RFID Protocol to Avoid Overhearing Problem

In this paper we describe an energy efficient protocol for active radio frequency identification (RFID) tags complying with the standard. The energy efficiency is a key requirement for the wider acceptance of the active RFID systems that use battery constrained tags. The existing active RFID protocols try to reduce energy consumption of tags by putting […]