International Journal of Scientific & Engineering Research, Volume 6, Issue 11, November-2015 460
ISSN 2229-5518
IJSER © 2015
http://www.ijser.org
Analysis of Bluetooth-Based Ad-Hoc
Network for Voice Transmission over
Local Area Network
1
B. O. Omijeh and
2
K.Munonye
1
Department of Electronic & Computer Engineering
2
Centre for Information and Telecommunications Engineering
University of Port Harcourt, Nigeria
E-mail Address : omijehb@yahoo.com;bourdillon.omijeh@uniport.edu.ng;
Abstract: In this paper, the analysis of Bluetooth-based ad-hoc network for voice transmission over
Local Area Network is presented. The aim is to analyze the performance of Bluetooth technology
when applied to communication between Bluetooth-enabled devices such as smart phones and
personal computers connected over Local Area Network (LAN) in order to communicate with other
users or devices which are out of the immediate Bluetooth range. Wireless communication helps you
to control electricity cost and time consumption so that we can save without compromising on
comfort. The methodology employed in this work is Matlab/Simulink –based. This includes the use of
the following communication blocks : CPM Modulator Baseband , M-FSK Modulator Baseband block,
General CRC Generator block, M-FSK Demodulator block, CRC Syndrome Detector block. The State
flow charts were used to implement the transmitter and Receiver Controller respectively. Results
obtained after simulation proved satisfactory. The use of Bluetooth in voice and data transmission
could produce high data and audio rates while not producing a corresponding rise in error rates. Error
rates has been found to be in the order of < 0.01.
KeyWords: Bluetooth, LAN, Ad-Hoc Network, Transmission, Communication
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1.0 Introduction
Wireless communication is one of the most active
areas of technology development and has become
an ever-more important and prominent part of
everyday life[1]. “Bluetooth is a short-range
wireless networking technology that allows easy
interconnection of mobile computers, mobile
phones, headsets, PDAs and computer peripherals
such as printers, without the need for cables. It is
designed to be low-cost and low form-factor, so
much design work is required to optimize resource
usage. Promoted by a number of wireless
communications equipment manufacturers, the
technology is named after Harald Bluetooth, a
Scandinavian king, famous for uniting the two
countries of Denmark and Norway during the 10
th
century” [2]
Bluetooth “uses the unlicensed Instrumentation,
Scientific, and Medical (ISM) band around
2.4GHz. It shares this channel with devices used
for other applications including cordless phones,
garage door openers, highway toll transponders,
and outside broadcasting equipment. It is also
susceptible to interference from microwave ovens,
which emit radiation in this bandwidth”[2] .
“There are two other wireless networking standards
that use this frequency band, namely: 802.11b or
"WiFi" and Home RF. 802.11b uses direct
sequence spread spectrum(DSSS) and Home RF
uses the frequency hopping spread
spectrum(FHSS) of 802.11 (a precursor to 802.11b)
for data and the DECT cordless phone standard for
voice[2]. DECT stands for Digital Enhanced
Cordless Telecommunication, a standard used in
Europe to create cordless phone system. “Many
networking products based on these technologies
are currently available” [2].
2.0 Theoretical Background
“Bluetooth is managed by the Bluetooth Special
Interest Group (SIG), which has more than 25,000
member companies in the areas of
telecommunication, computing, networking, and
consumer electronics [3]. Newton’s telecom
dictionary. New York: Flatiron Publishing”[4][13]
The name "Bluetooth" “is an Anglicised version of
the Scandinavian Blåtand/Blåtann, (Old Norse
blátǫnn) the epithet of the tenth-century king
Harald Bluetooth who united dissonant Danish
tribes into a single kingdom and, according to
legend, introduced Christianity as well. The idea of
this name was proposed in 1997 by Jim Kardach
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