Title :
Graph-Based Random Access for the Collision Channel without Feedback: Capacity Bound
Author :
Paolini, Enrico ; Liva, Gianluigi ; Chiani, Marco
Author_Institution :
DEIS/WiLAB, Univ. of Bologna, Cesena, Italy
Abstract :
A random access scheme for the collision channel without feedback is proposed. The scheme is based on erasure correcting codes for the recovery of packet segments that are lost in collisions, and on successive interference cancellation for resolving collisions. The proposed protocol achieves reliable communication in the asymptotic setting and attains capacities close to 1 [packets/slot]. A capacity bound as a function of the overall rate of the scheme is derived, and code distributions tightly approaching the bound developed.
Keywords :
channel capacity; channel coding; error correction codes; graph theory; interference suppression; asymptotic setting; capacity bound; code distributions; collision channel; erasure correcting codes; graph-based random access; packet segments; successive interference cancellation; Block codes; Decoding; Parity check codes; Peer to peer computing; Protocols; Silicon carbide; Tin;
Conference_Titel :
Global Telecommunications Conference (GLOBECOM 2011), 2011 IEEE
Conference_Location :
Houston, TX, USA
Print_ISBN :
978-1-4244-9266-4
Electronic_ISBN :
1930-529X
DOI :
10.1109/GLOCOM.2011.6134205
