Performance analysis of local computer networks
Performance analysis of local computer networks
Error correcting codes: theory and applications
Error correcting codes: theory and applications
Parity-based loss recovery for reliable multicast transmission
IEEE/ACM Transactions on Networking (TON)
Extensions of packet communication technology to a hand held personal terminal
AFIPS '72 (Spring) Proceedings of the May 16-18, 1972, spring joint computer conference
A spread slotted CDMA/ALOHA system with hybrid ARQ for satellite multiple access
IEEE Journal on Selected Areas in Communications
A digital fountain approach to asynchronous reliable multicast
IEEE Journal on Selected Areas in Communications
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Contention-based medium access control (MAC) protocol is a key component for the success of wireless data networks. Conventional random access protocols like ALOHA and Carrier Sense Multiple Access (CSMA) suffer from packet collision which leads to low throughput. Aimed at improving the throughput performance, we propose to integrate erasure coding with contention-based MAC protocols for recovering collided packets. To demonstrate the effectiveness of this approach, we focus on combining erasure coding with slotted ALOHA and slotted non-persistent CSMA in this paper. The performances of the resulting protocols are evaluated by both analytical model and simulation. Simulation results match very well with analytical results and show that the system throughput is increased for low to medium traffic loading. Packet loss ratio is also improved considerably with our scheme when the maximum number of packet retransmission times is limited. However, the delay for our scheme is higher due to the longer waiting time in our scheme for recovering collided packets. It is also shown that delay can be significantly reduced if we choose appropriate coding parameters though throughput will be sacrificed.