TY - GEN
T1 - Communication through Symbol Silence
T2 - 37th IEEE International Conference on Distributed Computing Systems, ICDCS 2017
AU - Feng, Bing
AU - Liu, Jianqing
AU - Zhang, Chi
AU - Fang, Yuguang
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2017/7/13
Y1 - 2017/7/13
N2 - Efficient design of wireless networks benefits from the exchange of control messages. However, control messageitself consumes scarce channel resources. In this paper, wepropose CoS (Communication through symbol Silence), a novel communication strategy that conveys control messages for free without consuming extra channel resources. CoS inserts silence symbols in data packets and leverages the intervals between inserted silence symbols to encode information. The silence symbols can be located by energy detection at the granularity of symbols and the intervals are interpreted into transmittedcontrol messages. Based on our key insights that the channel code is under-utilized in current wireless networks and the distribution of symbol errors within a data packet is predictable in indoor wireless transmissions, the symbols erased by silence symbols are recovered by the coding redundancy that is originally used to correct symbol errors. A rate adaptation scheme is designed to dynamically adjust the rate of free control messages according to channel conditions so that the transmission of free control messages does not harm the original data throughput. We implement CoS on our software defined radio platform to validate the feasibility of CoS. The extensive results show that the control messages are delivered with close to 100% accuracy in a large SNR range. In addition, we measure the achievable capacity of free control messages in various channel conditions.
AB - Efficient design of wireless networks benefits from the exchange of control messages. However, control messageitself consumes scarce channel resources. In this paper, wepropose CoS (Communication through symbol Silence), a novel communication strategy that conveys control messages for free without consuming extra channel resources. CoS inserts silence symbols in data packets and leverages the intervals between inserted silence symbols to encode information. The silence symbols can be located by energy detection at the granularity of symbols and the intervals are interpreted into transmittedcontrol messages. Based on our key insights that the channel code is under-utilized in current wireless networks and the distribution of symbol errors within a data packet is predictable in indoor wireless transmissions, the symbols erased by silence symbols are recovered by the coding redundancy that is originally used to correct symbol errors. A rate adaptation scheme is designed to dynamically adjust the rate of free control messages according to channel conditions so that the transmission of free control messages does not harm the original data throughput. We implement CoS on our software defined radio platform to validate the feasibility of CoS. The extensive results show that the control messages are delivered with close to 100% accuracy in a large SNR range. In addition, we measure the achievable capacity of free control messages in various channel conditions.
UR - https://www.scopus.com/pages/publications/85027276278
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85027276278&origin=recordpage
U2 - 10.1109/ICDCS.2017.120
DO - 10.1109/ICDCS.2017.120
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 9781538617915
T3 - Proceedings - International Conference on Distributed Computing Systems
SP - 880
EP - 888
BT - Proceedings - IEEE 37th International Conference on Distributed Computing Systems, ICDCS 2017
PB - IEEE
Y2 - 5 June 2017 through 8 June 2017
ER -