A Code-Based Packet Recovery Mechanism in Fiber-Wireless (FiWi) Access Networks

As a combination of fiber networks' huge available bandwidth and wireless networks' ubiquity and mobility, the fiber-wireless (FiWi) access network is considered as a promising network architecture for future networks. The wireless subnetwork of FiWi networks is responsible for users' Internet access and connected to back-end fiber subnetwork. Inheriting from pure wireless networks, the wireless subnetwork is also vulnerable to the factors in surrounding environment such as noise, mutual interference of different users and etc. Although fiber links are quite good, they are not perfect. When a fiber link is long enough, the signal fading can not be ignored which may make receiver receive a false packet. The interference in wireless subnetworks and the signal fading in fiber subnetworks severely affect the quality of service in FiWi networks. In this paper, a code-based packet recovery mechanism in FiWi access networks is proposed. Based on the XOR coding, a packet which contains recovery message is generated by sender after sending several normal packets. The recovery packet follows these normal packets. Our packet recovery mechanism makes the receiver be able to cope with the situation of one packet loss, rather than request the sender to retransmit. The recovery packet generating algorithm and the packet recovery algorithm are also presented. Through extensive numerical simulation, we discuss the cost of packet recovery mechanism and compare its performance with the alternative without packet recovery mechanism.

[1]  Raghuraman Mudumbai,et al.  A new jamming technique for secrecy in multi-antenna wireless networks , 2010, 2010 IEEE International Symposium on Information Theory.

[2]  Lu Ruan,et al.  Design of a Survivable Hybrid Wireless-Optical Broadband-Access Network , 2009, IEEE/OSA Journal of Optical Communications and Networking.

[3]  Matteo Cesana,et al.  Topology optimization for hybrid optical/wireless access networks , 2010, Ad Hoc Networks.

[4]  Xiang-Yang Li,et al.  Gateway Placement for Throughput Optimization in Wireless Mesh Networks , 2008, Mob. Networks Appl..

[5]  Jin Wang,et al.  A Study of Network Throughput Gain in Optical-Wireless (FiWi) Networks Subject to Peer-to-Peer Communications , 2009, 2009 IEEE International Conference on Communications.

[6]  W. Featherstone,et al.  N-in-1 Retransmission with Network Coding , 2010, IEEE Transactions on Wireless Communications.

[7]  Xiaodong Wang,et al.  Distributed Online Optimization of Wireless Optical Networks With Network Coding , 2012, Journal of Lightwave Technology.

[8]  Biswanath Mukherjee,et al.  A novel delay-aware routing algorithm (DARA) for a hybrid wireless-optical broadband access network (WOBAN) , 2008, IEEE Network.

[9]  Biswanath Mukherjee,et al.  Availability Evaluation of Hybrid Wireless Optical Broadband Access Networks , 2009, 2009 IEEE International Conference on Communications.

[10]  Douglas Comer,et al.  Principles, protocols, and architecture , 1995 .

[11]  Arun Katara,et al.  Hybrid Optical Wireless Access Networks , 2013, 2013 5th International Conference on Computational Intelligence and Communication Networks.

[12]  Martin Maier,et al.  Fiber-wireless (FiWi) access networks: Challenges and opportunities , 2011, IEEE Network.

[13]  Yi Qian,et al.  Improving Delay and Jitter Performance in Wireless Mesh Networks for Mobile IPTV Services , 2009, IEEE Transactions on Broadcasting.

[14]  Muriel Médard,et al.  Fiber Aided Wireless Network Architecture , 2011, IEEE Journal on Selected Areas in Communications.

[15]  Tiejun Lv,et al.  Dual XOR in the Air: A Network Coding Based Retransmission Scheme for Wireless Broadcasting , 2011, 2011 IEEE International Conference on Communications (ICC).