... wired network interface port
ã
AP functions
Wireless communications base station
Bridge between the wireless and wired networks
6
Wireless Network Interface Card
(continued)
5
Wireless Network ...
communicate among themselves
Wireless Communications
Wireless LocalArea Networks
4
WLAN Components
ã
Minimal hardware needed for a WLAN
Computer
ISP
Wireless network interface card
Access ... of wireless clients and an AP
ã
Extended Service Set (ESS)
Two or more BSS wireless networks installed in same
area
–
Provides users with uninterrupted mobile access to the
network
ã
All wireless...
... nhất được nhận dạng bởi thiết bị hai đầu.
5.4 CÔNG NGHỆ VLAN:
VLAN là viết tắt của Virtual LocalAreaNetwork hay còn gọi là mạng LAN
ảo. Một VLAN được định nghĩa là một nhóm logic các thiết ... hình native VLAN thì
phải cấu hình ở giao diện vật lý.
CHƯƠNG II
LÝ THUYẾT VỀ MẠNG
WAN (WIDE AREA NETWORK)
I. KHÁI NIỆM :
Là mạng được thiết lập để liên kết các máy tính của hai hay nhiều khu ... trí rất xa nhau, ví dụ như
những quốc gia khác nhau, thì khi đó ta có mạng diện rộng WAN(Wide Area
Network)
Trang
NGUYỄN ĐÌNH CÔNG – 36CLTH
2929
V./. CÁC CÔNG NGHỆ MẠNG LAN :
5.1. CÔNG NGHỆ CHUYỂN...
... improve-
ments.
9.7 Summary
In this chapter we cover the area of WirelessLocalArea Networks by focusing on a number
of issues:
†
WLAN topologies. The two types of wireless LAN topologies used today are the ... Wideband Local Access: Wireless LAN and Wireless ATM, IEEE Commu-
nications Magazine, November, 1997, 34–40.
[15] Geier J. Wireless LANs, Implementing Interoperable Networks, Macmillan Network ... summarized
below:
†
Throughput. Although this is a general requirement for every network, it is an even more
Wireless LocalArea Networks 245
Figure 9.5 Example of frequency reuse
ẵ2
21I
Ê ranfị Ê Slot_time,...
... 802.3) at 10Mbps
❚
50 ohm cable
Wireless LANs
❚
Mobility
❚
Flexibility
❚
Hard to wire areas
❚
Reduced cost of wireless systems
❚
Improved performance of wireless systems
William Stallings
Data ... performance of wireless systems
William Stallings
Data and Computer
Communications
Chapter 13
Local Area Network
Technology
LLC Protocol
❚
Modeled after HDLC
❚
Asynchronous balanced mode to support ...
constant
❚
Significant increase in maximum ring size
Wireless LAN Applications
❚
LAN Extension
❚
Cross building interconnection
❚
Nomadic access
❚
Ad hoc networks
...
... Thiết lập và định cấu hình cho một mạng LAN
(Local Area Network)
Thiết lập mạng: Lắp card mạng: ban đầu bạn phải lắp card mạng vào máy
tính bằng ... TCP/IP cho từng máy (đối với Win 9x) bạn bạn tiến hành: Vào
My computer > Control Panel > Network > nếu tại đây bạn đã thấy có
giao thức TCP/IP rồi thì bạn khỏi cần add thêm nếu chưa ... nên thiết lập gán IP theo dạng tĩnh. Ðể thực hiện bạn vào My
computer > Control Panel > Network > nếu tại đây bạn đã thấy có giao
thức TCP/IP rồi thì bạn khỏi cần add thêm nếu chưa...
... circuits and wireless communications have
led to the development of Wireless Body Area Networks
(WBANs). Wireless body area networks may be a viable
alternative to measure active time. They can ... purposes)
Journal of NeuroEngineering and
Rehabilitation
Open Access
Research
Accelerometer-based wireless body areanetwork to estimate
intensity of therapy in post-acute rehabilitation
Stéphane Choquette
1,2
, ... active time (i.e. the time during which
a patient is active physically) obtained with a wireless body areanetwork (WBAN) of 3D accelerometer
modules positioned at the hip, wrist and ankle. The...
... information flow in an inte-
grated WBAN system.
Wireless Body AreaNetwork of Intelligent Sensors for Patient MonitoringFigure 1
Wireless Body AreaNetwork of Intelligent Sensors for Patient Monitoring
... interfaced to standard wirelessnetwork plat-
forms that provide computational, storage, and
communication capabilities. Multiple physiological sen-
sors can share a single wirelessnetwork node. In ... type of wire-
less network employed. For example, the personal server
can communicate with individual WBAN nodes using the
Zigbee wireless protocol that provides low-power network
operation and...
... PDF Creator â Foxit Software
http://www.foxitsoftware.com For evaluation only.
ATHENA
Mng LocalArea Network
Generated by Foxit PDF Creator â Foxit Software
http://www.foxitsoftware.com For evaluation ... Software
http://www.foxitsoftware.com For evaluation only.
ATHENA
Cỏc Kin Trỳc Mng LAN
Khỏi nim:
ã Network Topology l s đồ dùng để biểu diễn
các kiểu sắp xếp, bố trí của máy tính, dây cáp
và các...
... Exchange, Wirelesslocalarea networks
1 Introduction
In offices, homes, and public spaces, IEEE 802.11 wire-
less localarea n etworks (WLANs) has been extensive ly
used to provide wireless Internet ... TCP-based window-size delegation
method for TXOP Exchange in wireless lo cal area networks. EURASIP
Journal on Wireless Communications and Networking 2011 2011:58.
Submit your manuscript to a
journal ... 12
RESEARCH Open Access
TCP-based window-size delegation method for
TXOP Exchange in wirelesslocalarea networks
Takayuki Nishio
1*
, Ryoichi Shinkuma
1
, Tatsuro Takahashi
1
and Go Hasegawa
2
Abstract
We...
... coverage, wireless networks
can in general be divided into five different categories,
including wireless regional area networks (WRANs), wireless
wide area networks (WWANs), wireless metropolitan area
networks ... networks (WWANs), wireless metropolitan area
networks (WMANs), wirelesslocalarea networks (WLANs),
and wireless personal area networks (WPANs). The IEEE
standards association establishes five ... Introduction
A wirelessnetwork is a type of computer networks that
utilizes wireless communication technologies to maintain
connectivity and exchange messages between stations over
wireless media,...