Title :
An adaptive FEC scheme for data traffic in wireless ATM networks
Author :
Akyildiz, Ian F. ; Joe, Inwhee ; Driver, Henry ; Ho, Yung-Lung
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Tech. Res. Inst., Atlanta, GA, USA
fDate :
8/1/2001 12:00:00 AM
Abstract :
A new adaptive forward-error-correction scheme (AFEC) is introduced at the link layer for TCP/IP data traffic in wireless ATM networks. The fading and interference in wireless links cause high and variable error rates, as well as bursty errors. The purpose of the AFEC scheme is to provide a dynamic error-control mechanism by using Reed-Solomon coding to protect the ATM cell payload, as well as the payload type indicator/cell loss priority fields in the ATM cell header. In order to enhance the error tolerance in cell framing and correct delivery, the AFEC scheme functions within a new concept called LANET framing and addressing protection mechanisms. The AFEC scheme has been validated using a simulation testbed of a low-speed wireless ATM network
Keywords :
Reed-Solomon codes; adaptive codes; asynchronous transfer mode; data communication; digital simulation; error statistics; fading channels; forward error correction; packet radio networks; radiofrequency interference; time-varying channels; transport protocols; ATM cell header; ATM cell payload protection; BER; LANET addressing protection; LANET framing protection; Reed-Solomon coding; TCP/IP data traffic; adaptive FEC; adaptive coding; adaptive forward error correction; bursty errors; cell framing; cell loss priority fields; data traffic; dynamic error-control; error tolerance; fading; high error rates; interference; link layer; low-speed wireless ATM network; payload type indicator; simulation testbed; time-varying wireless channels; variable error rates; wireless links; Adaptive systems; Error analysis; Fading; Forward error correction; Interference; Payloads; Protection; Reed-Solomon codes; TCPIP; Telecommunication traffic;
Journal_Title :
Networking, IEEE/ACM Transactions on
