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Questions and Answers
What is the main advantage of the proposed protocol compared to existing protocols in UWSNs?
What is the main advantage of the proposed protocol compared to existing protocols in UWSNs?
- It considers the impact of multiple voids on network performance
- It is more energy efficient and has a lower end-to-end delay. (correct)
- It uses a beacon-based forwarding mechanism to avoid voids.
- It has a lower packet delivery ratio than existing protocols.
What is the main problem that UWSNs face according to the text?
What is the main problem that UWSNs face according to the text?
- Difficulty in transmitting signals through water.
- Limited battery life of underwater sensors.
- Interference from other wireless networks.
- Voids and broken links caused by water currents and obstacles. (correct)
What is a potential limitation of the location prediction method used in the proposed protocol?
What is a potential limitation of the location prediction method used in the proposed protocol?
- It requires a large amount of computational power.
- It may not be accurate under certain conditions. (correct)
- It is not compatible with existing underwater sensors.
- It only works in shallow water environments.
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Study Notes
- The paper proposes a location-based void avoidance routing protocol for UWSNs.
- The protocol uses a beacon-less geographic forwarding mechanism to avoid voids.
- A location prediction method is incorporated to estimate the location of the next hop.
- The proposed protocol outperforms existing protocols in packet delivery ratio, energy efficiency, and end-to-end delay.
- The protocol does not consider the impact of multiple voids on network performance.
- The location prediction method may not be accurate under certain conditions.
- UWSNs face the problem of voids and broken links caused by water currents and obstacles.
- The proposed protocol provides an effective solution for avoiding voids in UWSNs.
- The protocol is suitable for applications that require reliable data transmission over long distances in challenging environments.
- The paper was published in IEEE Transactions on Mobile Computing in 2019.
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