Study on Joint-Coding Based on Pre-Coding and STBC in Coordinated Multi-Point System

Yang, Jun; Zheng-xiao, Zhang; Jiang, Zhanjun; Xue, Jiang; He, Miao

doi:10.1109/scet.2012.6342137

Cited by 1 publication

(3 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…CoMP is a complex set of techniques which are distributed radios that jointly transmit information in wireless environments. The main purpose may be improved for the reliability of communications in terms of coverage extension, reduced outage probability, symbol-error, or bit-error probability for a given transmission rate [19][20][21]. It brings many advantages to the user as well as the network operator as follows.…”

Section: Literature Surveymentioning

confidence: 99%

“…Constraint (18) represents the boundaries of decision variable dir V . Once MC selects a link V in direction dir, the SNR value on V cannot exceed the SNR transmitted from to V in (19).…”

Section: Explanation Of Constraintmentioning

confidence: 99%

“…The Lagrangian Relaxation method is proposed in conjunction with the optimization-based heuristics to solve the problem. The primal problem (IP 1) is transformed into the following Lagrangian Relaxation Problem, where constraints (3), (4), (5), (6), (10), (11), (12), (14), (15), (16), (17), (19), (20), (21), (22), (23), (25), (26), (27), (28), and (29) are relaxed by introducing Lagrangian multiplier vector…”

Section: Appendixmentioning

confidence: 99%

See 2 more Smart Citations

Minimum-Cost QoS-Constrained Deployment and Routing Policies for Wireless Relay Networks

Lin

Hsiao

Chu

et al. 2013

Journal of Applied Mathematics

View full text Add to dashboard Cite

With the continued evolution of wireless communication technology, relaying is one of the features proposed for the 4G LTE Advanced (LTE-A) system. The aim of relaying is to enhance both coverage and capacity. The idea of relays is not new, but relaying is being considered to ensure that the optimum performance is achieved to enable the expectations or good quality of service (QoS) of the users to be met while still keeping capital expenditure (CAPEX) within the budgeted bounds of operators. In this paper, we try to stand for an operator to propose a solution that determines where and how many relays should be deployed in the planning stages to minimize the development cost. In the planning stages, we not only derive a multicast tree routing algorithm to both determine and fulfill the QoS requirements to enhance throughput, but we also utilize the Lagrangian relaxation (LR) method in conjunction with optimization-based heuristics and conduct computational experiments to evaluate the performance. Our contribution is utilizing the LR method to propose an optimal solution to minimize the CAPEX of operators to build up a relay network with more efficiency and effectiveness and the QoS can be guaranteed by service level agreement.

show abstract

Section: Literature Surveymentioning

confidence: 99%

“…Constraint (18) represents the boundaries of decision variable dir V . Once MC selects a link V in direction dir, the SNR value on V cannot exceed the SNR transmitted from to V in (19).…”

Section: Explanation Of Constraintmentioning

confidence: 99%