표제지
논문개요
목차
I. 서론 11
II. Background and Probe Scope 16
1. 재난안전통신망 17
2. 대역폭 17
3. IEEE 802.11ah 17
4. TV White Space 18
5. 동적 대역폭 할당 19
6. 캐리어 어그리게이션 19
III. 관련 연구 20
1. 재난안전통신망 20
2. TV White Space 24
3. IEEE 802.11ah 25
IV. 간섭 인지 동적 대역폭 할당 전송 기법 27
1. 간섭 인지 동적 대역폭 할당 전송 기법 27
2. 간섭 인지 동적 대역폭 할당 전송 기법 이론적 분석 32
V. 성능 평가 35
1. 실험 환경 35
2. 실험 결과 및 분석 40
VI. 결론 51
참고문헌 54
ABSTRACT 61
TABLE I. TV White Space U.S. 6MHz Channels 18
TABLE II. Previous Research on Public Safety-LTE 23
TABLE III. Value of Set Bandwidth 32
TABLE IV. MCS Parameters 36
TABLE V. Value of the Interference Case 39
TABLE VI. Simulation Parameters according to the Rate of Interference Change 40
FIGURE 1. Probe Scope 16
FIGURE 2. Interference Aware Dynamic Bandwidth Allocation Transmission Technique Mechanism 28
FIGURE 3. Interference Aware Dynamic Bandwidth Allocation Transmission Technique Flow Chart 29
FIGURE 4. Carrier Aggregation of the Proposed Technique 30
FIGURE 5. Channel capacity according to Shannon Theorem 33
FIGURE 6. 802.11ah Packet Error Rate Simulation for 2x2 TGah Channel 37
FIGURE 7. 802.11ah Packet Error Rate 38
FIGURE 8. Latency of Interference Case1 41
FIGURE 9. Latency of Interference Case2 42
FIGURE 10. Latency of Interference Case3 42
FIGURE 11. Latency of Interference Case4 43
FIGURE 12. Latency of Interference Case1 in Transmit Limit 44
FIGURE 13. Latency of Interference Case2 in Transmit Limit 45
FIGURE 14. Latency of Interference Case3 in Transmit Limit 45
FIGURE 15. Latency of Interference Case4 in Transmit Limit 46
FIGURE 16. Throughput of Interference Case1 in Transmit Limit 47
FIGURE 17. Throughput of Interference Case2 in Transmit Limit 48
FIGURE 18. Throughput of Interference Case3 in Transmit Limit 48
FIGURE 19. Throughput of Interference Case4 in Transmit Limit 49