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HCCA. This chapter is an extension of our recent work [21] presenting our proposals in
more detail and containing new experiments with a variety of video content.
The presentation of the material is organized as follows. Section 5.2 defines the
scenarios examined in this work and provides the necessary definitions and formulations
for the expected bandwidth, transmission error rate as well as the expected delay for
streaming under various network paths. Section 5.3 presents the cross-layer optimization
problem. The proposed solutions are presented in Section 5.4. Section 5.5 analyzes the
complexity and feedback requirements of the proposed approaches. Section 5.6 presents
indicative results, including comparisons with other well known approaches from the
literature. Our conclusions are presented in Section 5.7.
5.2 Proposed Integrated Cross-Layer Video Streaming
Consider that N nodes (hops) of a wireless multi-hop mesh network decide to participate in
a video streaming session. Example topologies with N = 3 and N = 7 are shown in Figure
5.1 and Figure 5.2. Node h1 represents the original video source, while node hN is the
destination node (video client).
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