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In standard TCP/IP stack, its protocol dictates that if the header error is detected by mean of checksum computation, the packet will be discarded. Though this is a very fast and efficient method to detect `bad packet', it forces an extra channel usage. In this paper, we proposed a method to implement forward error correction (FEC) for uncompressed packet header. It is a byte-level FEC and it is going...
The wireless billboard channels (WBCs) are integral part of the ubiquitous consumer wireless world (UCWW) - the wireless next generation network (NGN) proposal. The WBCs are used by the service providers (xSPs) for broadcasting advertisements of their services to the mobile terminals (MTs) so that the mobile users (MUs) may discover and associate with the best service following a user-driven dasiaalways...
Header compression is the process of reducing protocol header overhead in order to improve link efficiency while maintaining the end-to-end transparency. Robust header compression (ROHC) is a scheme for IMS (IP multimedia subsystem) and MBMS (multimedia broadcast multicast service). ROHC is defined for 2.5 Gm (GPRS) and according to 3Gpp2 next generation network, in CDMA2000 1x EV-DO and 1x EV-DV...
We propose a mechanism that incorporates network coding into TCP with only minor changes to the protocol stack, thereby allowing incremental deployment. In our scheme, the source transmits random linear combinations of packets currently in the congestion window. At the heart of our scheme is a new interpretation of ACKs - the sink acknowledges every degree of freedom (i.e., a linear combination that...
Using the application of bluck data transfer, we investigate the performance of QoS-satisfied pathover for transport layer mobility scheme such as mSCTP in FMIPv6 envirmonment. We find that existing scheme has some defects in aspect of pathover and throughput. Based on this, we make a potential change to mSCTP by adding QoS-Measurement-Chunk, which is used to take into account information about wireless...
This paper proposes a novel, reliable and efficient advertisements delivery protocol (ADP) for use in unidirectional wireless billboard channels (WBCs) for IP datacasting (lPDC). The ADP is based on a modified asynchronous layered coding (ALC) protocol and uses a forward error correction (FEC) with Reed-Solomon (RS) coding to guarantee packet-level reliable data broadcasting. The ADP implementation...
A scheme that exploits the broadcast nature of the wireless communication in order to achieve multicast content delivery is presented in this paper. As opposed to broadcasting, this method enables the clients to determine on-line the delivered content, and thus preserves the advantages of an individual service. On the other hand, a multicast content delivery is much more efficient than a unicast content...
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