Title :
Robust header recovery based enhanced permeable protocol layer mechanism
Author :
Marin, Cedric ; Leprovost, Yann ; Kieffer, Michel ; Duhamel, Pierre
Author_Institution :
Alcatel-Lucent, Res. & Innovation, Nozay
Abstract :
This paper presents an enhanced permeable layer mechanism useful for reliable packetized multimedia transmission. Packet header recovery at various protocol layers using MAP estimation is the cornerstone of the proposed solution. The available intra-layer and inter-layer header correlation is used to define a reduced set of header configurations for further processing. The best candidate is then obtained through soft decoding based on CRC redundancy. Simulation results for a WiFi transmission scheme using DBPSK modulated signals over an AWGN channel show a substantial (4 to 12 dB) link budget improvement. A sub-optimal and hardware realizable version of the proposed algorithm is also presented.
Keywords :
AWGN channels; decoding; maximum likelihood estimation; multimedia communication; phase shift keying; protocols; telecommunication network reliability; wireless LAN; AWGN channel; CRC redundancy; DBPSK modulated signals; MAP estimation; Wi-Fi transmission scheme; enhanced permeable protocol layer mechanism; interlayer header correlation; intralayer header correlation; multimedia transmission reliablity; robust packet header recovery; soft decoding; Bandwidth; Cyclic redundancy check; Decoding; Error correction; Error correction codes; Protection; Protocols; Robustness; Satellite broadcasting; Streaming media;
Conference_Titel :
Signal Processing Advances in Wireless Communications, 2008. SPAWC 2008. IEEE 9th Workshop on
Conference_Location :
Recife
Print_ISBN :
978-1-4244-2045-2
Electronic_ISBN :
978-1-4244-2046-9
DOI :
10.1109/SPAWC.2008.4641576
