Table 4 Evaluation of smart learning framework connectivity resilience. Compare uptime percentages and reconnection delays, and SLICED has the strongest operational resilience and fastest recovery, exceeding IoT and cloud-based techniques.

From: SLICED: A secure and adaptive cloud–iot framework for low-latency e-learning environments

Method

Connectivity Resilience (Uptime%)/Reconnection Delay (s)

Relevant/Impact

SL-IoT

90% uptime/3 s delay

Vulnerable to network disruptions, limited to local connectivity.

LMS-IoT

92% uptime/2.5s delay

Improved resilience, and still dependent on cloud availability.

PEF-En

88% uptime/4 s delay

Struggles with weak network, longer reconnection times.

R-BEC

85% uptime/5 s delay

Poor resilience to network instability and delays in reconnection.

H-Ed-AI

91% uptime/2.7s delay

Moderate resilience, and performance degrades in poor conditions.

Cc-ELn

87% uptime/4.5s delay

Network resilience challenges, especially in low bandwidth regions.

Azure IoT

96% uptime/1.8s delay

Advanced cloud-based redundancy with per-device recovery, rapid reconnection in hybrid mode.

Google Cloud IoT

94% uptime/2 s delay

Strong global network; effective fail-over and automated scaling, moderate reconnection.

SLICED

98% uptime/1 s delay

Excellent resilience, real-time recovery even in weak network conditions.