- The Complete Research Material is averagely 52 pages long and it is in Ms Word Format, it has 1-5 Chapters.
- Major Attributes are Abstract, All Chapters, Figures, Appendix, References.
- Study Level: BTech, BSc, BEng, BA, HND, ND or NCE.
- Full Access Fee: ₦6,000
Get the complete project »
ABSTRACT
Wireless networks provide communications to fixed, portable and mobile users and offer substantial flexibility to both end-users and service providers. Current cellular/PCS networks do not offer cost effective high data rate services for applications, such as, telematics, traffic surveillance and rescue operations. This research, studies the feasibility and behavior of outdoor implementation of low-cost wireless LANs used for high mobility telematics and traffic surveillance. A multi-hop experimental wireless data network is designed and tested for this purpose. Outdoor field measurements show the wireless coverage and throughput patterns for static and mobile users. The results suggest that multi-hop wireless LANs can be used for high mobility applications if some protocols are improved.
CHAPTER ONE
GENERAL INTRODUCTION
1.0 PREAMBLES
Recently wireless local area networks (WLANs) have emerged as flexible communication systems, which have been implemented as an extension or alternative to a wired LAN within buildings. Using electromagnetic waves WLANs transmit and receive data over air interface, minimizing need for wired connection; thereby it enables user mobility in covered area without losing connectivity from the backbone network. The system implementations vary from simple peer-to-peer connection between two computers to cover entire buildings by many transmitter/receiver devices - access points (AP), which are connected to the wired network.
Most of the recently used WLAN systems are specified in IEEE 802.11 standard. The IEEE 802.11 standard is divided into two main layers: the Medium Access Control layer (MAC) and the Physical Layer (PHY). These two layers allow a functional separation of the standard and, more importantly allow a single data protocol to be used with several different RF transmission techniques.
WLAN systems mainly work based on these standards:
• 802.11b (802.11HR) - DSSS at 2.4 GHz with 1, 2, 5.5, and 11 Mbps data rates,
• 802.11g - OFDM at 2.4 GHz with 1, 2, 5.5, 11, and 22 Mbps data rates,
• 802.11a - OFDM in 5 GHz band with 6, 12, 18, 24, 36, 48, and 54 Mbps data rates, and
• HiperLAN2 – OFDM in 5.15-5.35 GHz and 5.725-5.825 GHz bands, similar to the 802.11a PHY (with varying convolution codes).
The indoor signal propagation differs from an outdoor case particularly in distances and in variability of the environment. Due to the multipath propagation (multiple reflections, diffractions and scatterings of electromagnetic waves from surrounding objects) the radio signal distortions and propagation losses (fading) occur.
For a small network in a limited area, only manufacturer’s information on the coverage range is sufficient to deploy the APs. For a larger network, a more accurate deployment procedure is required to ensure sufficient coverage and network functionality (bit rate, capacity, interference, etc.). Basically there are two approaches. The first is based on a site survey with a lot of measurements and experimental decisions. The second method comprises of software planning using propagation models.
1.1 STATEMENT OF THE PROBLEM
The basic issue addressed in this project is to study the feasibility and characteristics of wireless local area networks. The success of current wireless LANs under these conditions will lead us to use them as high rate outdoor wireless data networks.
Wireless networks can provide communications to both fixed and mobile users without any need of using data cables and can provide substantial flexibility to both end-user and service provider.
The use of current cellular/PCS high data rate services for data networking is not economically feasible due to high usage costs. Wireless local area networks have been designed and used for mostly indoor applications. The possible use of these wireless LANs for high mobility outdoor applications, such as, telemetry, traffic surveillance, rescue operations, and outdoor data networking can provide reasonably high data rates at minimal operational costs. These attractions led us to investigate the feasibility and operational characteristics of current wireless LAN standards in high mobility outdoor environments
1.2 OBJECTIVES OF THE STUDY
This project is focused on WLANs and associated wireless technology. When addressing key aspects of technology such as WLANs, a comprehensive and holistic approach is required in order to truly derive an overall understanding of the complex, integrated and inter-dependent aspects.
The objectives of the study include the following:-
i. To analyze the architectural and operational structure of the IEEE 802.11b standard.
ii. To recommend appropriately measures that would ensure improvements to the standard.
1.3 SCOPE OF THE STUDY
This study will cover the WLANs and associated wireless technology. When addressing key aspects of technology such as WLANs, a comprehensive and holistic approach is required in order to truly derive an overall understanding of the complex, integrated and inter-dependent aspects of it. Hence, further to wireless technology, the guide also delves into security issues. This area should be further addressed in order to gain a comprehensive understanding and view of wireless technology’s role within your district’s overall strategy.
And also focuses on the IEEE 802.11b standard, which is one of the most commonly deployed and commercially available wireless LANs around the world. The success of 802.11b lies in the use of license-free 2.4GHz band, reasonable high available data rates (up to 11mbps), and commercially available product around the world. The investigation enables us to study the throughput and delay performance of an experimental multi-hop outdoor wireless network with increasing number of hops and speed.
1.4 LIMITATION OF THE STUDY
All area of human endeavors is usually characterized by some limits factors. The peculiar constraints encountered in carrying out this project are as follows:-
i. Constraint of time: the study was carried out with a given terminal data for submission due to the shortness in the semester.
ii. Unavailability of language compiler for use such as the language that would have enabled the development of more sophisticated work.
iii. Virus attack during programming design, there was virus attack which indicated start from scratch.
1.5 SIGNIFICANT OF THE STUDY
In the design of this project it will assure that the computer scientist should have conversant with the use of computer hardware system, computer network and computer software.
1.6 DEFINITIONS OF KEY TERMS
Access Point: An entity that has station functionality and provides access to the destination services, via the wireless medium for associated stations.
Ad hoc Network: A network composed solely of stations within mutual communication range of each other via the wireless medium.
Bridge: A device that forwards link-level frames from one physical network to another, sometimes called a LAN switch.
Channel: An instance of medium use for the purpose of passing protocol data units (PDUs) that may be used simultaneously, in the same volume of space, with other instances of medium use (on other channels) by other instances of the same physical layer (PHY), with an acceptably low frame error ratio due to mutual interference.
Client: The requester of a service in a distributed system.
Congestion: A state resulting from too many packets contending for limited resources, which may force the router (switch) to discard packets.
Congestion Control: Any network resource management strategy that has, as its goal, the alleviation or avoidance of congestion.
Connectionless Protocol: A protocol in which data may be sent without any advance setup.
CSMA/CD: Carrier Sense Multiple Access with Collision Detect. CSMA/CD is a functionality of network hardware. “Carrier sense multiple access” means that multiple stations can listen to the link and detect when it is in use or idle; “collision detect” indicates that if two or more stations are transmitting on the link simultaneously, they will detect the collision of their signals.
Ethernet: A popular local area network technology that uses CSMA/CD and has a bandwidth of 10 Mbps.
Host: A computer attached to one or more networks that supports users and runs application programs.
Internet: The global internet based on the Internet (TCP/IP) architecture, connecting millions of hosts worldwide.
Interoperability: The ability of heterogeneous hardware and multivendor software to communicate by correctly exchanging messages.
IP: Internet Protocol, A network layer protocol that provides a connectionless, best-effort delivery service of Datagrams across the Internet.
Latency: A measure of how long it takes a single bit to propagate from one end of a link or channel to the other. Latency is measured strictly in terms o
You either get what you want or your money back. T&C Apply
You can find more project topics easily, just search
-
SIMILAR COMPUTER SCIENCE FINAL YEAR PROJECT RESEARCH TOPICS
-
1. DESIGN OF INDUSTRIAL BATCH COUNTER
» CHAPTER ONE INTRODUCTION The industrial batch counter is an electronic and electrical device that handles the counting and controls the flow of indivi...Continue Reading »Item Type & Format: Project Material - Ms Word | 52 pages | Instant Download | Chapter 1-5 | COMPUTER SCIENCE DEPARTMENT
-
2. IMPACT OF AUTOMATED TELLER MACHINE ON BANK CUSTOMER SATISFACTION IN BANKS
» CHAPTER ONE INTRODUCTION 1.1 Background of the Study Automated Teller Machines (ATM) are devices used by bank customers to process account transaction...Continue Reading »Item Type & Format: Project Material - Ms Word | 91 pages | Instant Download | Chapter 1-5 | COMPUTER SCIENCE DEPARTMENT
-
3. INTERACTIVE ONLINE FOOD ORDERING SYSTEM
» ABSTRACT The customer self ordering system is a computerized system that is being used by customers to place their own orders in the restaurant and al...Continue Reading »Item Type & Format: Project Material - Ms Word | 86 pages | Instant Download | Chapter 1-5 | COMPUTER SCIENCE DEPARTMENT
-
4. DESIGN OF AUTOMATED REMOTE POWER MANAGEMENT SYSTEM (ARPMS)
» ABSTRACT The magnitude of operational losses in the supply of electricity in Nigeria has been growing significantly. Issues of theft and illegal conne...Continue Reading »Item Type & Format: Project Material - Ms Word | 128 pages | Instant Download | Chapter 1-5 | COMPUTER SCIENCE DEPARTMENT
-
5. DESIGN AND IMPLEMENTATION OF A COMPUTERISED RESTAURANT MANAGEMENT INFORMATION SYSTEM
» ABSTRACTThis project work is primarily designed to give an insight to computer based restaurant management information system. It is as a result of pr...Continue Reading »Item Type & Format: Project Material - Ms Word | 65 pages | Instant Download | Chapter 1-5 | COMPUTER SCIENCE DEPARTMENT
-
6. Design and Implementation of a password repository locker
» CHAPTER ONE 1.1 INTRODUCTION 1.2 BACKGROUND OF STUDY A password is a word or string of characters used for user authentication to prove identity of ac...Continue Reading »Item Type & Format: Project Material - Ms Word | 49 pages | Instant Download | Chapter 1-5 | COMPUTER SCIENCE DEPARTMENT
-
7. Design and Implementation of Door Lock System using RFID
» CHAPTER ONE INTRODUCTION 1.1 BACKGROUND OF THE STUDY RFID, Radio Frequency Identification is a fundamental and inexpensive technology that enables wir...Continue Reading »Item Type & Format: Project Material - Ms Word | 69 pages | Instant Download | Chapter 1-5 | COMPUTER SCIENCE DEPARTMENT
-
8. DESIGN AND IMPLEMENTATION OF WEB BASED VETERINARY INFORMATION MANAGEMENT SYSTEM
» ...Continue Reading »Item Type & Format: Project Material - Ms Word | 52 pages | Instant Download | Chapter 1-5 | COMPUTER SCIENCE DEPARTMENT
-
9. DESIGN AND IMPLEMENT A COMPUTERIZED DRUG INFORMATION MANAGEMENT SYSTEM
» ABSTRACT Drug procurement and distribution tracking system is a set of computer programs that obtains the supplies of drugs, distribute the drugs and ...Continue Reading »Item Type & Format: Project Material - Ms Word | 87 pages | Instant Download | Chapter 1-5 | COMPUTER SCIENCE DEPARTMENT
-
10. DESIGN AND IMPLEMENTATION OF AN ONLINE VEHICLE AND PLATE NUMBER REGISTRATION AND IDENTIFICATION SYSTEM IN NIGERIA
» CHAPTER ONE 1.0 INTRODUCTION Vehicle Registration in Nigeria began over 100 years ago and the records have been essentially manual which in turn has n...Continue Reading »Item Type & Format: Project Material - Ms Word | 88 pages | Instant Download | Chapter 1-5 | COMPUTER SCIENCE DEPARTMENT