Paper Info
Title
Point-Casting Service in Wireless Networks
Abstract
The broadcast nature of existing wireless LANs can produce excessive radio coverage which is often undesirable for applications like wireless IPTV or location-based service. To address this issue, we utilize the characteristics of signal attenuation common to all wireless communications and implement a point-casting service 1 (PCast) over existing wireless networks that can significantly restrict the coverage for transmissions. The principle of PCast is to split and encode the downlink traffic and deliver it to the client via a few surrounding access points (APs). Hence, an unintended client cannot decode a packet without all its fragments. Equivalently, the service area is bounded within the intersection of communication coverage of all APs. The result coverage area can be further reduced via rate and power control at the APs. In this paper, we present our design and implementation of the PCast service on top of an 802.11a wireless LAN. Experiments conducted in a lab environment show that PCast can bound the service region to be within 2 meters around a client, while incurring jitter of less than 1ms, and bandwidth capacity loss of less than 10%.
Year
DOI
Venue
2007
10.1109/INFCOM.2007.72
INFOCOM
Keywords
Field
DocType
pcast service,ieee 802.11a wireless lan broadcasting,broadcasting,encoding,wireless communication network,signal attenuation,point-casting service,downlink traffic encoding,radio coverage,telecommunication traffic,wireless lan,decoding,power control,downlink,wireless networks,wireless network,location based service,attenuation,wireless communication,radio broadcasting
Broadcasting,Wireless network,Wireless,Computer science,Network packet,Power control,Computer network,IPTV,Wi-Fi array,Jitter
Conference
ISSN
ISBN
Citations 
0743-166X
1-4244-1047-9
0
PageRank 
References 
Authors
0.34
6
4
Name
Order
Citations
PageRank
Zhengrong Ji122617.26
Maneesh Varshney2948.56
Junlan Zhou397847.01
Rajive Bagrodia42754360.20