Show how to construct a send-constrained channel from a receive-constrained channel, and vice versa

1.Show how to construct a send-constrained channel from a receive-constrained channel, and vice versa. Hint: use a trusted node connected to the given channel.

2.discuss the applicability to mobile and ubiquitous systems of techniques drawn from the areas of: i) peer-to-peer systems (Chapter 10); ii) coordination and agreement protocols (Chapter 15); iii) replication (Chapter 18).