In this paper, an adaptive forwarding strategy for wireless networks using multiple relays in general cooperative link is analyzed. Two schemes, amplify-and-forward (AF) and decode-and-forward (DF) are investigated depending on channel conditions. Further a hybrid scheme employing multiple relays which allows switching between the two schemes according to channel condition is proposed. The bit error probability performance (BEP) for the proposed hybrid strategy has been evaluated in presence of m-nakagami fading. The simulation results are general as they hold for an arbitrary number of cooperating branches and arbitrary number of cooperating hops per branch. We have evaluated the BER performance for variable number of relays in multi-hop and multi-branch cooperative network. The impact of switching threshold and ‘m’ parameter on bit error rate (BER) is indicated. Further BEP performance is assessed using LDPC code.
목차
Abstract 1. Introduction 2. Single Link Hybried Relay Network 3. General Cooperation Scenarios 3.1 Adaptive Decode and Forward Based Multihop Relay Network 3.2 Adaptive Decode and Forward Based Multibranch Cooperative Relays Network 3.3 Multihop,Multibranch Cooperative Network 4. Simulation Model 4.1 Source 4.2 Relay 4.3 Channel 4.4 Destination 5. Results and Discussion 6. Conclusion References
키워드
Low Density Parity check (LDPC) codeAmplify and forward (AD)decode and forward (DF)adaptive decode and forward (ADF)BERLog- likelihood ratio (LLR).
저자
Chanchal Kumar De [ Dept. of Electronics and Instrumentation Engineering Dr. B. C. Roy Engineering College ]
Sumit Kundu [ Department of ECE, National Institute of Technology ]
보안공학연구지원센터(IJFGCN) [Science & Engineering Research Support Center, Republic of Korea(IJFGCN)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Future Generation Communication and Networking
간기
격월간
pISSN
2233-7857
수록기간
2008~2016
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Future Generation Communication and Networking Vol.5 No.1